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Erika Typewriter Serial Numbers Erika Typewriter Serial Numbers for all Erika typewriter models. Erika Typewriter Serial Numbers for models: Erika 1, Erika 10, Erika 100, Erika 105, Erika 11, Erika 115, Erika 12, Erika 12 Pullman, Erika 120, Erika 125, Erika 127, Erika 15, Erika 153, Erika 155, Erika 2, Erika 20, Erika 3, Erika 30, Erika 3004 electronic, Erika 3006 electronic, Erika 32, Erika 33, Erika 34, Erika 4, Erika 40, Erika 41, Erika 42, Erika 43, Erika 47, Erika 48, Erika 5, Erika 5 Tab, Erika 50, Erika 6, Erika 60, Erika 8, Erika 9, Erika 90, Erika CBM (Commodore Business Machines), Erika CBM 30, Erika CBM 40, Erika Daro, Erika DZ33, Erika Electric Portable, Erika M, Erika Model 10, Erika Model 14, Erika Model 42, Erika Picht 502-1, Erika Picht 520, Erika Präsident Deluxe, Erika S 2024-12-11 04:16 Look up Erika Typewriter Serial Numbers to find the ages for Erika typewriter models: Erika 1, Erika 10, Erika 100, Erika 105, Erika 11, Erika 115, Erika 12, Erika 12 Pullman, Erika 120, Erika 125, Erika 127, Erika 15, Erika 153, Erika 155, Erika 2, Erika 20, Erika 3, Erika 30, Erika 3004 electronic, Erika 3006 electronic, Erika 32, Erika 33, Erika 34, Erika 4, Erika 40, Erika 41, Erika 42, Erika 43, Erika 47, Erika 48, Erika 5, Erika 5 Tab, Erika 50, Erika 6, Erika 60, Erika 8, Erika 9, Erika 90, Erika CBM (Commodore Business Machines), Erika CBM 30, Erika CBM 40, Erika Daro, Erika DZ33, Erika Electric Portable, Erika M, Erika Model 10, Erika Model 14, Erika Model 42, Erika Picht 502-1, Erika Picht 520, Erika Präsident Deluxe, Erika S Find out how old your typewriter is. Look up Erika Typewriter Serial Numbers to find the ages for Erika typewriter models: Erika 1, Erika 10, Erika 100, Erika 105, Erika 11, Erika 115, Erika 12, Erika 12 Pullman, Erika 120, Erika 125, Erika 127, Erika 15, Erika 153, Erika 155, Erika 2, Erika 20, Erika 3, Erika 30, Erika 3004 electronic, Erika 3006 electronic, Erika 32, Erika 33, Erika 34, Erika 4, Erika 40, Erika 41, Erika 42, Erika 43, Erika 47, Erika 48, Erika 5, Erika 5 Tab, Erika 50, Erika 6, Erika 60, Erika 8, Erika 9, Erika 90, Erika CBM (Commodore Business Machines), Erika CBM 30, Erika CBM 40, Erika Daro, Erika DZ33, Erika Electric Portable, Erika M, Erika Model 10, Erika Model 14, Erika Model 42, Erika Picht 502-1, Erika Picht 520, Erika Präsident Deluxe, Erika S

Erika Typewriter Serial Numbers

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Also known as Brand: Seidel & Naumann • Aztec (Erika) • Bijou • Erika • Eureka • Ideal • Ideal Portable • Irene • U.S. Mirsa Ideal • Ursula

Serial Number Table Last Edited: 12/11/24 04:16
NOTE: dates shown are JAN 1 unless noted, so the serial number shown is the *first* serial number produced the given year. Exceptions are serial numbers preceded by "up to"(where you can assume that the numbers reported in that subsection are DECEMBER 31, END OF YEAR NUMBERS) or rows where a month is given in the month column. If the serial number is shown as a range (xxxx-xxxx) it indicates that we know the entire range of serial numbers for the given year.

Seidel & Naumann  
        Fahrraeder- und Naehmaschinenfabrik Seidel & Naumann AG, Dresden, Germany.
Since 1954: VEB Schreibmaschinenwerke, Dreden, GDR
  
Models and s/n Y M D Remarks Ref.

Ideal Standard
Model A1    
up to 200 1900     First German 4 key-rows machine 10
           
Model A2    
up to 1400 1901       7,10,13
3600 1902     Since 1902: "Ideal Polyglott" Models, with multi-language writing (double shift and sometimes only capital letters, depending on the second language), 42 keys up to 200 different characters by combination 4,7,10,13
8500 1903       7,10,13
           
Model A3    
up to 16000 1904       10
24000 1905       10
32000 1906       10
40000 1907       10
52000 1908       10
           
Model A4    
up to 66000 1909       10
76000 1910       10
84000 1911       10
91000 1912       10
96000 1913       10
98000 1914       10
99000 1915       10
100000 1916       10
102000 1917       10
103386 1918       10
           
Model B    
up to 500 1912       10
3000 1913     Some Model B's are also known as Model No. 5 9
6800 1914       10
8000 1915       9
12000 1916       9
14000 1917       9
19000 1918       9
25000 1919       9
30000 1920       9
93000 1926     1921- 1926 machines with large carriage 9,10
95000 1927       9,10
           
Model C    
up to 33000 1920       9,10
43000 1921       9,10
59000 1922       9,10
72000 1923       9,10
81000 1924       9,10
100000 1925       9,10
           
Model D    
up to 101000 1925       9,10
110000 1926       9,10
124000 1927       9,10
137000 1928       9,10
150000 1929       9,10
263000 1930     At 22000 all Ideal Models began to be numbered consecutively. 9,10
275000 1931       9
           
Model DZ1          
up to 264000 1931       9,10
           
Model DZ2          
up to 267000 1931       9,10
271000 1932       9,10
           
Model DZ3          
272000 1932       9,10
278000 1933       9,10
           
Model DZ33          
up to 279000 1933       9,10
500000-528000 1934     Since 1934 all Ideal and Erika Numbers running consequently starting at 500000 9
up to 576000 1935       9
654000 1936       9
743000 1937       9
835000 1938       9
840000 1939       9
950000 1940       9
1005000 1941       9,13
1008000 1942       9
1015000 1943       13
1020000 1944       13
1060000 1945       13
           
Ideal 10          
360870 1955       14
370736 1956       14
380752 1957       14
391329 1958       14
401952 1959       14
408026 1960       14
           

Erika Portable
Models 1, 2, 3, and 4
  1910     Model 1 (3-bank portable) production begins 25
up to 5000 1911       25
5001-9000 1912     Model 2 production begins 25
9001-12000 1913       25
12001-15000 1914       25
15001-20000 1915       25
20001-25000 1916       25
25001-30000 1917       25
30001-35000 1918       25
35001-40000 1919       25
40001-45000 1920       25
45001-50000 1921       25
50001-55000 1922       25
55001-60000 1923     Model 4 production begins 25
60001-65000 1924       25
65001-70000 1925       25
70001-75000 1926       25
75001-82000 1927       25
           
Models 5, 6, M, and S
82001-90000 1928     Model 5 (4-bank portable) production begins 25
90001-110000 1929       25
110001-130000 1930       25
130001-150000 1931       25
150001-165000 1932     Model 5 Tab production begins 25
165001-185000 1933     Model 6 production begins 25
185001-205000 1934     Model 6 Tab production begins 25
205001-530000 1935     Model M production begins 25
530001-600000 1936     Model S production begins 25
600001-680000 1937       25
680001-740000 1938       25
740001-840000 1939       25
840001-950000 1940       25
950001-1005000 1941       25
1005001-1008000 1942       25
1008001-1130200 1943       25
1130201-1146600 1944     1944-1947 numbers run from 1130201 to 1146600 25
  1945     See 1944 25
  1946     See 1944 25
  1947     See 1944 25
1146601-1155591 1948     Model S ended 1948 25
1155592-1166600 1949     Models 5, 6, and M ended 1949. Seidel & Naumann Erika production taken over by VEB Dresden 25
           
Model 8
1166601-1180000 1950       25
1180001-1191480 1951       25
1191481-1201769 1952     Model 8 ended 1952 25
           
Model 9
1300000-1308790 1950       25
1308791-1318400 1951       25
1318401-1327530 1952       25
1327531-1335170 1953       25
1335171-1340258 1954     Model 9 ended 1954 25
           
Model 10
1700001-1706580 1952       25
1706581-1731800 1953       25
1731801-1754960 1954       25
1754961-1782290 1955       25
1782291-1806160 1956       25
1806161-1837590 1957       25
1837591-1868120 1958       25
1868121-1905200 1959       25
1905201-1942000 1960       25
1942001 1961     1961-1962 numbers run 1942001 to 2120000 25
  1962     See 1961 25
2120001-2138000 1963     Model 10 ended 1963 25
           
Model 11
2010001-2015000 1954       25
2015001-2024870 1955       25
2024871-2030400 1956       25
2030401-2037000 1957       25
2037001-2044300 1958       25
2044301 1959     1959-1960 numbers run from 2044301 to 2055295 25
2055295 1960     See 1959. Model 11 ended 1960 25
           
Model 12
2057001-2066800 1960     Production begins 4/1960 25
2066801-2083000 1961       25
2083001 1962     1962-1963 numbers run from 2083001 to 3002800 25
3002800 1963     See 1962. Model 12 ended 1963 25
           
Model 20
4000201-4000477 1960     Production begins 9/1960 25
4000478 1961     1961-1962 numbers run 4000478 to 4014887 25
4014887 1962     See 1961. Model 20 ended 2/1962 25
           
Model 14
2200001 1963     2200001 to 2232342 25
        Models 14 and 15 produced from 2/1963 to 6/1965 25
           
Model 15
3000001 1963     3000001 to 3072158 25
        Models 14 and 15 produced from 2/1963 to 6/1965 25
           
Models 30/40, 32/42, 41, 33/43, 50/60, 34/44, 100/105, 150/153, 155/158, 170/173, 127/128, 103/108, and 125
4000001-4040755 1965     Model 30/40 production begins 6/1965 25
4040756-4135704 1966     Models 32/42 and 41 production begins 8/1966 25
4135705-4245402 1967     Model 33/43 production begins 1/1967 25
4245403-4345568 1968       25
4345569-4467199 1969     All East German typewriter manufacturers consolidated as Zentronik (Robotron) 4/1969 25
4467200-4595066 1970       25
4595067-4709443 1971       25
4709444-4839101 1972       25
4839102-4989373 1973       25
4989374-5175663 1974     Model 50/60 production begins 1/1974 25
5175664-5373043 1975     Model 34/44 produced from 6/1975 to 6/1976 25
5375600-5577000 1976       25
5577400-5780000 1977     Model 100/105 production begins 8/1977 25
5780400-5984000 1978       25
5984600-6297000 1979     Zentronik becomes Robotron 4/1979. Model 127 production begins 7/1979. Model 103/108 (Oriental keyboard) production begins 1979 25
6298600-6512000 1980     Models 150/153, 155/158, and 170/173 production begins 10/1980 25
6512300-6695000 1981     Model 125 production begins 1/1981. Model 127 resumed 4/1981 25
6711495-6924875 1982       25
6924876-7129491 1983       25
7129492-7329009 1984       25
7329010-7476300 1985       25
7476301-7622892 1986       25
7622893-7773261 1987       25
7773262-7929106 1988       25
7929107-8080388 1989       25
8080389-8224301 1990       25
8224302-8272042 1991     Production ends August 1991 25

Erika Typewriter: Links to History

Erika Typewriter: Links to Guides

Erika Typewriter Models: Erika 1, Erika 10, Erika 100, Erika 105, Erika 11, Erika 115, Erika 12, Erika 12 Pullman, Erika 120, Erika 125, Erika 127, Erika 15, Erika 153, Erika 155, Erika 2, Erika 20, Erika 3, Erika 30, Erika 3004 electronic, Erika 3006 electronic, Erika 32, Erika 33, Erika 34, Erika 4, Erika 40, Erika 41, Erika 42, Erika 43, Erika 47, Erika 48, Erika 5, Erika 5 Tab, Erika 50, Erika 6, Erika 60, Erika 8, Erika 9, Erika 90, Erika CBM (Commodore Business Machines), Erika CBM 30, Erika CBM 40, Erika Daro, Erika DZ33, Erika Electric Portable, Erika M, Erika Model 10, Erika Model 14, Erika Model 42, Erika Picht 502-1, Erika Picht 520, Erika Präsident Deluxe, Erika S

Reference numbers

* Indicates source data the current list maintainer has access to. Usually it means we have a copy of the document in question, but it might be in the form of a later edition list. However, for the purposes of validation we have been able to confirm the source.

   
No. Literature
1 * Century of the Typewriter, Wilfred A. Beeching, publ. by the British Typewriter Museum, 1974, 1990, ISBN 0951679007
2 * Joan Sales,"Date your Underwood Typewriter" - Website : http://www.oocities.org/heartland/cottage/5405/serial.htm, reference to Richard Polt
(note: The source for this article was at least partially Ref. #18)
3 Allowance Sheet 1918, made available by Andrew B. Schrader
4 Ernst Martin, Die Schreibmaschine und ihre Entwicklungsgeschichte(The Typewriter and the history of it's developement), publ. by Johannes Meyer Verlag and Basten International, 1920 to 1949 and reprints
5 * Darryl Rehr, Antique typewriters, by Schroeder publishing, Los Angeles, 1997, ISBN 0891457577
see: http://home.earthlink.net/~dcrehr/book/book.html
6 * Typewriter Age Guide, publ. by Office Machines and Equipment Federation, London, copies contributed by Mr. Bruce Beard, Australia
(note: this reference same as #28)
7 * "Liste der Herstellungsdaten gangbarer Schreibmaschinen" Listing of the production dates of commen typewriters), publ. by Wochenschrift für Papier, Otto Hoffmann Verlag, 1941, Berlin, copies contributed by Mr. Paul Roberts, Netherlands. Current copy from the collection of Ryk van Dijk, scanned by Marlies Louwes.
8 * Richard Polt, adapted from the book of Paul Lippman, American Typewriters: A Collector's Encyclopedia (1992) and corrected, based on a list publ. in ETCetera #4
see: http://www.aquaporin4.com/etcetera/ETC.04.pdf
9 "Fabriknummernverzeichnis" (Factory number Listing), booklet which could be purchased optionally with book reference No. 4, edition 1941, publ. by Johannes Meyer Verlag, Pappenheim 1941
10 "Fabrikationsdaten von Schreibmaschinen", listing of typewriter serial numbers for dealer's, 1942 and 1935, publ. by Carl Teege Verlag, Hamburg
11 Ames Supply General Catalog from 1949
12 Information contributed by Will Davis, see : http://www.hometown.aol.com/page3.html
13 Liste der Herstellungsdaten deutscher und auslaendischer Schreibmaschinen, 10 Auflage, 1955, publ. by Burghagen Verlag, Hamburg (small book, pre-owned by the Adler Werke vorm. Heinrich Kleyer, Frankfurt)
14 * Leonhard Dingwerth, Kleines Lexikon Historischer Schreibmaschinen (Small Lexicon of Historical Typewriters), publ. by Kunstgrafik Dingwerth, Eichendorffstr. 77, D-33415 Verl
15 * Office Typewriter Age List No. 26, publ. by Smith-Corona, by courtesy of Mr. Ron Fuller, Los Angeles, USA
(note: this reference same as #22)
16 * American Typewriters - A Collector's Encyclopedia by Paul Lippman, 1992, Hoboken
17 * National Office Machine Dealers Assoc. "Blue Book" (NOMDA), 1964, provided by Bill Wahl
18 * Remington Information Binder (The Sheridan Binder), 1950's to 1970's, provided by Richard Polt.
see: http://munk.org/typecast/2011/09/07/in-preparation-for-an-updated-typewriter-serial-number-database-royal-portables/
19 * Interview with P. Birchmeier, Aug. 2012, reported by Georg Sommeregger.
see: http://groups.yahoo.com/group/theportabletypewriterforum/message/31895
20 * National Office Machine Dealers Assoc. "Blue Book" (NOMDA), 1980, provided by Bill Wahl.
see: http://munk.org/typecast/2011/04/22/national-office-machine-dealer-association-1972-typewriter-age-guide/
21 * VOSS Schreibmaschinen, 2012, published by Georg Sommeregger.
see: https://www.sommeregger.name/typewriters/collection/VOSS.html
https://www.sommeregger.name/typewriters/collection/voss_52.html
https://www.sommeregger.name/typewriters/collection/voss_24_typewriter.html
https://www.sommeregger.name/typewriters/collection/voss_klein_voss.html
https://www.sommeregger.name/typewriters/collection/voss_privat.html
22 * Smith-Corona Age List #26, 1960, provided by Bill M.
see: http://offountainpenstypewriters.blogspot.com/2012/02/typewriter-serial-numbers.html
and: http://offountainpenstypewriters.blogspot.com/2012/02/moretypewriter-serial-numbers.html
23 * Shipman-Ward Office Machine Dealer's Line Book, Jan 1, 1954, provided by Bill Wahl.
see: http://munk.org/typecast/2013/01/05/shipman-ward-dealers-line-book-1954%E2%80%93part-2-age-lists/
24 * H.F.W. Schramm, Liste der Herstellungsdaten deutscher und ausländischer Schreibmaschinen, 11th edition, Hans Burghagen Verlag, Hamburg 1962 - copy provided by Georg Sommeregger. Additional copy from the collection of Ryk van Dijk, scanned by Marlies Louwes.
25 * P. Frensel, Die Entwicklung der ehemaligen DDR-Schreibmaschinen-Produktion (einschliesslich der bis 1945 produzierten Schreibmaschinen in diesem Gebiet sowie der Produktion ab 1990), in: Schreibmaschinen- und Bureau-Zeitung, Nr. 10/1999, Nr. 11/2000, Nr. 12/2000 (originally published in: Mannheimer Hefte für Schriftvergleich, Nr. 1-2/1999) - provided by Georg Sommeregger and later by Otto Koponen
"The development of the former GDR typewriter production (including typewriters produced on its territory until 1945 and production after 1990)"
26 * "The Writing Machine (A history of the typewriter)" Michael H. Adler
27 * "Antique Typewriters from Creed to QWERTY" Michael H. Adler
28 * Typewriter Age Guide, publ. Dec 1973 by Office Machines and Equipment Federation, London, copies contributed by Mr. Peter Brill, Australia
(note: this reference same as #6)
29 * Typewriter Age Guide, publ. Oct 1971 by Office Machines and Equipment Federation, London, copies: T. Munk with the assistance of Mr. Rob Bowker, UK
30 * Typewriter Age Guide, publ. Oct 1980 by Office Machines and Equipment Federation, London, copies: T. Munk with the assistance of Mr. Rob Bowker, UK
31 * The Business Machines and Equipment Digest, publ. 1927 by Equipment-Research Corporation, copy contributed by Mark Adams.
see: http://type-writer.org/?p=2850
32 * R. Blickensderfer and P. Robert, "The Five-Pound Secretary. An Illustrated History of the Blickensderfer Typewriter", publ. 2003 by The Virtual Typewriter Museum, excerpt contributed by Georg Sommeregger.
33 * Matricolario Olivetti, copy contributed by Enrico Morozzi.
34 * Olivetti Graphika Serial Number List, compiled by Domenico Scarzello.
See: http://www.typewriterstory.com/index.php/ol-graphica
35 * Liste der Herstellungsdaten deutscher und auslandischer Schreibmaschinen - 1950. By Carl Teege, Published by Hans Burghagen Verlag. From the collection of Ryk van Dijk, scanned by Marlies Louwes.
36 * Liste der Herstellungsdaten deutscher und auslandischer Schreibmaschinen - 1953. Published by Hans Burghagen Verlag. From the collection of Ryk van Dijk, scanned by Marlies Louwes.
37 * National Typewriter and Office Machine Dealer's Association (NOMDA) Typewriter and Adding Machine Allowance Schedule, February 1, 1941. From the Collection of Tony Casillo, contributed by Richard Polt.
38 * Wyckoff, Seamans & Benedict. Remington Standard typewriter. New York : Wyckoff, Seamans & Benedict, [188-?], accessed from the Baker Library, Harvard Business School.
See: http://pds.lib.harvard.edu/pds/view/2574435
39 * Documented Hammond Serial Numbers, V.4 Jan. 1, 2013 through V.7 Jul 20, 2017, Compiled by Peter Weil.
40 * Blick Billheads With Serial Numbers, Compiled by Peter Weil.
41 * Olympia, USA "Allowance Sheet T-58" (approx 1977). From the Collection of Tony Casillo, contributed by Richard Polt.
42 * IBM Typewriters Serial Numbers 1946 to 1977, Montreal Branch - IBM Canada Ltd. Contributed to Yahoo GolfBallTypewriterShop group by Jacques Coulombe.
43 * Xerox Factbook 1987
See: http://simson.net/ref/Xerox/
44 * IBM Selectric Adjustment & Parts Manual S241-5939-2
45 * Brother Service Update #31, June 20, 1985
See: http://munk.org/typecast/wp-content/uploads/2014/05/brother-datecodes-1.jpg
46 * Brother Letter #0203 (10/1979) "How to Determine In-Warranty Typewriters"
See: http://munk.org/typecast/wp-content/uploads/2014/05/brother-warranty-3.jpg
47 * Brother Service Manuals and Addendums 1974-1990 "The Edsel R. Sanders Collection"
See: http://munk.org/typecast/2014/05/06/a-brotherly-bonanza/
48 * National Typewriter and Office Machine Dealer's Association (NOMDA) Typewriter and Adding Machine Allowance Schedule, 1977. From the Collection of Tony Casillo, contributed by Richard Polt.
49 * Brother Group Corporate Profile, 2014
See: http://download.brother.com/pub/com/en/corporate/pdf/2014/broa4_3334_en.pdf
50 * Victor Standard Typewriters, By Will Davis
See: http://web.archive.org/web/20090830084402/http:/geocities.com/wbd641/Victor.html
51 * Die historische Entwicklung des Bet riebes Optima Erfurt (2008), by Eberhard Lippmann. Contributed by Vilhelm Dromberg
52 * Corona: The Personal Writing Machine, by S. L. Johnson
See: http://www.sljohnson.net/typewriter/corona.html
53 * Standard Folding Typewriter by Richard Milton
See: http://www.portabletypewriters.co.uk/portable_typewriters_standard_folding.htm
54 * Collect Folding Coronas, by Paul Lippman
See: http://etconline.org/backissues/ETC004.pdf?page=4
55 * Smith-Corona Parts and Service Manuals (1947-1999) lent by Bill Wahl
56 * Europe - Oliver - SIM - MAS small typewriters, by Georg Sommeregger.
See: https://sommeregger.name/typewriters/collection/OLIVER_SIM_MAS.html
57 * The Montana line of Hermes clones, by Mark Adams.
See: http://type-writer.org/?p=3598
58 * The Hermes Baby page!, by Georg Sommeregger.
See: http://www.typewriters.ch/collection/hermes_baby.html
59 * American Digest of Business Machines, 1924. Contributed by Richard Polt.
See: http://site.xavier.edu/polt/typewriters/ADBM1924.pdf
60 * "MTE-INV" Mesa Typewriter Exchange Stock Inventory Records 1950 to 1987. Contributed by Bill Wahl.
61 * "Mechanical Typewriters - Their History, Value, and Legacy" by Thomas A. Russo.
62 * "The IBM Model B typewriter" by IBM.
See: https://www-03.ibm.com/ibm/history/exhibits/modelb/modelb_intro.html
63 * "Remington Portables" by Richard Polt.
See: http://site.xavier.edu/polt/typewriters/rem-portables.htm
64 * "Moskva and Janalif Research" by Alex Sandler. (plus updates)
See: https://goo.gl/I5X12b, https://goo.gl/z0tSOq, https://goo.gl/4iq9Tz http://odtype.blogspot.com/2016/10/moskva-3-and-4-age-lists-as-of-ix2016.html, http://odtype.blogspot.com/2017/02/moskva-5-6-and-7-age-lists.html
65 * "Collector's Guide to Antique Typewriters" Dan Post, Post-Era Books, 1981.
66 * "The Unknown Writing Machine" Don Sutherland in The Antique Trader, 1978.
67 * "Don't Mind My Insanity: Updated Fox Serial Numbers" by Tyler Anderson.
See: https://wordsarewinged.blogspot.com/2016/06/dont-mind-my-insanity-updated-fox.html
68 * "A Very Good Year for Adler Favorit 2's" by Robert Godlieb.
See: http://badonoer.blogspot.com/2016/01/a-very-good-year-for-adler-favorit-2s.html
69 * "FBI Forgery by Typewriter: Re-Examining the Alger Hiss Case - How Did His 1927 Woodstock Become a 1929 Model?" by Robert Messenger.
See: http://oztypewriter.blogspot.com/2016/01/fbi-forgery-by-typewriter-re-examining.html
70 * "The Littlest Typewriters: Bennett's Bantamweights" by Robert Messenger.
See: http://oztypewriter.blogspot.co.uk/2012/02/littlest-typewriters-bennetts.html
71 * "Re: [TYPEWRITERS] Bennett Typewriter on Yahoo Typewriter Forum" by Thomas Furtig.
72 * "Sabb Schreibmaschine" by Georg Sommeregger.
See: http://www.typewriters.ch/blog/2016/06/sabb-schreibmaschine/
73 * "Discovering the Studio Musicwriter" by Theodore Munk.
See: Etcetera #109 (link when available)
74 * "The Story of the Typewriter 1873-1923" Herkimer County Historical Society, 1923.
75 * "The Early History of the Typewriter" by Chas. E Weller (1918).
76 * "Old Typewriters" by Duncan James (Shire, 1993).
77 * "Williams Typewriter Research" by Tyler Anderson, 2016.
78 * "The History of the Typewriter" by Geo. Charles Mares (Gilbert Pitman, London, 1909).
79 * "Emerson Typewriter Research" by Tyler Anderson & Peter Weil, 2016.
80 * "The Emerson: The Enigma of Typewriters" by Robert Messenger.
See: http://oztypewriter.blogspot.com/2013/07/the-emerson-enigma-of-typewriters.html
81 * "A History of the Three-Row 'WILLIAMS' Typewriters" by Richard E. Dickerson in Historische Bürowelt No. 21 April 1988, and No. 22 July 1988.
82 * "Typewriter Topics: Vol. 50-52 1922" by The International Office Equipment Magazine.
83 * "Typewriter Topics: Vol. 6-7 1907" by The International Office Equipment Magazine.
84 * "Typewriter Topics: Vol. 38-40 1918" by The International Office Equipment Magazine.
85 * "Typewriter Topics: Vol. 41 1919" by The International Office Equipment Magazine.
86 * "Typewriter Topics: Vol. 29-32 1915" by The International Office Equipment Magazine.
87 * "The Victor Standard Typewriter" by Will Davis.
See: http://davistypewriters.blogspot.com/2015/05/the-victor-standard-typewriter.html
88 * "On This Day in Typewriter History: Trying to Unravel the Victor Mystery" by Robert Messenger.
See: http://oztypewriter.blogspot.com/2012/11/on-this-day-in-typewriter-history_6.html
89 * "The Franklin Typewriters" by Richard E. Dickerson in ETCetera #1 October, 1987.
See: http://etconline.org/backissues/ETC001.pdf
90 * "On This Day in Typewriter History (CVI)" by Robert Messenger.
See: http://oztypewriter.blogspot.com/2011/09/on-this-day-in-typewriter-history-cvi.html
91 * "the Garbell Portable Typewriter" by The Garbell family.
See: http://www.garbell.com/GarbellTypewriter.html
92 * "Garbell Typewriter" by Greg Fudacz.
See: http://www.antikeychop.com/#!garbell-typewriter/us0eg
93 * "Fox Visible Typewriters - An Overview " by Will Davis.
See: http://davistypewriters.blogspot.com/2015/08/fox-visible-typewriters-overview.html
94 * "Fox Portable Typewriters and the Demise of Fox Typewriter Company " by Will Davis.
See: http://davistypewriters.blogspot.com/2015/08/fox-portable-typewriters-and-demise-of.html
95 * "The American Stationer" 1906.
96 * "The American Stationer" 1907.
97 * "Franklin Typewriter Ephemera" collected by Peter Weil, 2016.
98 * "A Bennington Letter" collected by Martin Howard.
See: http://etconline.org/backissues/ETC082.pdf
99 * "Filing & Office Management Magazine" Volume 6, 1921.
100 * "Filing & Office Management Magazine" Volume 7-8, 1922.
101 * "Typewriter Topics: Vol. 35-37 1917" by The International Office Equipment Magazine.
102 * "Typewriter Topics: Vol. 44-46 1920" by The International Office Equipment Magazine.
103 * "On This Day in Typewriter History: Unearthing the Molle" by Robert Messenger.
See: http://oztypewriter.blogspot.com/2013/01/on-this-day-in-typewriter-history_9569.html
104 * "It's pronounced 'Mollie'" by Mark Adams.
See: http://type-writer.org/?p=4230
105 * "The Iron Age, Volume 79 - 1907".
106 * "Office Appliances Volume 36 - July 1922".
107 * "Office Appliances Volume 34 - July 1921".
108 * "The American Pocket Typewriter and Wellington Parker Kidder's Rochester" by Robert Messenger.
See: http://oztypewriter.blogspot.com/2014/07/the-american-pocket-typewriter-and.html
109 * "Crouching Tiger, Hidden Details - The early days of the Noiseless Typewriter" by Ed Neuert.
See: http://etconline.org/backissues/ETC081.pdf
110 * "The Merritt" by Will Davis.
See: http://davistypewriters.blogspot.com/2016/09/merritt.html
111 * "Yatran The Heaviest" by Alex Sandler.
See: http://odtype.blogspot.com/2016/09/yatran-heaviest.html
112 * "Moskva 3 and 4 age lists as of 10-2016" by Alex Sandler.
See: http://odtype.blogspot.com/2016/10/moskva-3-and-4-age-lists-as-of-ix2016.html
113 * "Portable Typewriters Today - February 2015" by Will Davis.
See: http://davistypewriters.blogspot.com/2015/02/portable-typewriters-today-february-2015.html
114 * "The Early Bar-Lock" and "Bar-Lock Typewriters - Models 4 to 15" by Bert Kerschbaumer.
See: ETCetera #98 & #114
115 * "AMES Supply General Catalog #10 - March, 1960".
116 * "AMES Supply Parts Catalog #11P - Feb., 1965".
117 * "The Amazing Masspro Portable Typewriter: 'Grandson' of the Standard Folding" by Robert Messenger.
See: http://oztypewriter.blogspot.com/2013/10/the-amazing-maspro-portable-typewriter.html
118 * "Masspro Typewriter Page" by Greg Fudacz.
See: http://www.antikeychop.com/masspro-typewriter
119 * "Carl P. Dietz Collection of Typewriters", by George Herrl, 1965.
120 * "Royal Paint Touch-Up Color List", Rev. June, 1968.
121 * "Olympia SM series (part 1, 1948-1964)" by Nick T.
See: http://xoverit.blogspot.com/2015/02/olympia-sm-series-part-1-1948-1964.html
122 * "Olympia SM series (part 2, 1964-1980s)" by Nick T.
See: http://xoverit.blogspot.com/2015/04/olympia-sm-series-part-2-1964-1980s.html
123 * "AMES Supply General Catalog #5 - August, 1940".
124 * "1975 Smith-Corona Model Prefix Guide", Discovered by Jonathan Kinser from Smith-Corona research.
125 * "Evolution of the Typewriter", C. V. Oden, 1917.
126 * "1912-1923 The Origins and Evolution of the Typewriter" Various Authors.
127 * "The Swedish Densmore Typewriter" by Robert Messenger.
See: http://oztypewriter.blogspot.com/2015/03/the-swedish-densmore-typewriter.html
128 * "All or Nakajima" by Steve K.
See: https://etzone.org/2017/06/17/all-or-nakajima
129 * Smith-Corona Series Estimates researched by Nick Bodemer, 2017
130 * Research by Peter Weil, and ephemera from The Cornelia and Peter Weil Typewriter Archives
131 * 1963 Hermes Baby Adjustment Manual B3, from the collection of T. Munk
132 * Underwood Age List, from the collection of Tony Casillo
See: http://www.typewritercollector.com/images/underwoodagelist.pdf
133 * 1966 & 1971 Hermes 3000 Adjustment Manuals G4,G6 & 1971, from the collection of Jacques Perrier, Museum of the Typewriter, Lausanne, Switzerland
See: https://www.perrier-sa.ch/musee/boutique/
134 * "Korean Typewriters" by Robert Messenger.
See: http://oztypewriter.blogspot.com/2012/01/korean-typewriters.html
135 * 1985 IBM Replacement Guide Form 71K6222, supplied by Clark Hinson from the collection of Roger Brockevelt
136 * "Blickensderfer’s last hurrah as a Remington" by Mark Adams.
See: https://type-writer.org/?p=4294
137 * Blickensderfer Research by Peter Weil, 2017
138 * Etcetera #106-107
139 * "Briefly Blick-Bar" by Robert Messenger.
See: http://oztypewriter.blogspot.com/2016/01/briefly-blick-bar.html
140 "Lexikon historischer Schreibmaschinen seit 1940" (Typewriter Lexikon since 1940) published 2008 by Leonhard Dingwerth.
141 * "Olivetti macchine per scrivere meccaniche" published 2013 by Carlo Torchio.
From the collection of Carl Hartmann via Mario Bellini
142 * "The ABC in Detail" by Will Davis and Thomas Fürtig.
See: http://davistypewriters.blogspot.com/search?q=abc+in+detail
143 * "The Real Story of the Brosette Typewriter and its successor the Jaykay Portable" by Michael A. Brown.
See: http://typexnews.com/links/Brosette.pdf
144 * "A Royal Safari at Eighteen Years on the Net" by Will Davis.
See: https://davistypewriters.blogspot.com/2018/03/a-royal-safari-at-eighteen-years-on-net.html
145 "The typewriter industry, The impact of a significant technological innovation" 1970 doctoral dissertation by George Nichols Engler, UCLA.
See: https://archive.org/details/TheTypewriterIndustry
146 * Research by Ian Brumfield
147 * Typewriter pages from Sears Catalogs: 1900-1985 From the collections of Alan Seaver (mostly), Nick Bodemer and T. Munk.
148 * "Ten Most Wanted Typewriters" by Richard Polt.
See: https://site.xavier.edu/polt/typewriters/tw-10mw.html
149 * Messa Research by Carl Hartmann.
150 * "The Dawn of the Lettera 22" by John Cooper.
See: https://atypeofmadness.com/2019/02/12/the-dawn-of-the-lettera-22
151 * "Litton Drags its Caravan Through the Typewriter Desert" by Robert Messenger.
See: https://oztypewriter.blogspot.com/2019/03/litton-drags-its-caravan-through.html
152 * "Typewriter review: 2019 Royal Classic" by Richard Polt.
See: https://writingball.blogspot.com/2019/03/typewriter-review-2019-royal-classic.html
153 * "GENERATION 3000" by Will Davis.
See: http://www.willdavis.org/Generation3000.html
154 * "Everything New in Portable Typewriters is Old Again" by Robert Messenger.
See: https://oztypewriter.blogspot.com/2013/12/everything-new-in-portable-typewriters.html
155 * "Pretentious Self-Indulgence, and Also Some Pretty Big Breakthroughs" by Ian Brumfield.
See: http://dailyclipper.retroid.xyz/2019/07/16/pretentious-self-indulgence-and-also-some-pretty-big-breakthroughs
156 "1965-1969 Royal Line Catalog" from the collection of Ian Brumfield.
157 * "Harris Visible, Rex Visible, Demountable; Name variants; Vim Visible" by Will Davis.
See: https://davistypewriters.blogspot.com/2015/01/harris-visible-rex-visible-demountable.html
158 * "1973 NOMDA Blue Book" by National Office Machine Dealers Association.
159 * "Olympia Engineering Bulletin General-3" by ITC, Jan 1, 1969.
160 * "IDENTIFYING AND DATING ANTIQUE CALIGRAPH WRITING MACHINES Nos. 1-4" by Al Sumrall.
See: https://oldhoodooblog.wordpress.com/2020/03/20/identifying-and-dating-antique-caligraph-writing-machines-typewriters-nos-1-4/
161 * "Some Type Writers - Their Origin and Uses" By J. B. Huling in Scientific American #575 - January 8, 1887.
162 * "Typewriter, A Celebration of the Ultimate Writing Machine" by Paul Robert and Peter Weil, 2016.
163 * "The Caligraph Publications" by Paul Robert.
164 * "Magic, Maligners and Malfunctions. Part IV – the Waverley, Maskelyne, Rapid, Salter and Many More." by Robert Messenger.
See: https://oztypewriter.blogspot.com/2020/07/magic-maligners-and-malfunctions-part.html
165 * "Burroughs Adding Machine Company - Typewriters"
See: http://www.burroughsinfo.com/typewriters.html
166 * "Hall Typewriter Serial Numbers" by Al Sumrall
167 * LC Smith and Corona Service Bulletins (1939-1954) From the collection of T. Munk
168 * "Research on Halberg" by Theo Verkerk
See: https://www.facebook.com/groups/TypewriterCollectors/permalink/10157289533199678/
https://www.facebook.com/groups/TypewriterCollectors/permalink/10157248994634678/
https://www.facebook.com/groups/TypewriterCollectors/permalink/10157259808104678/
169 * Royal Royalite Parts Manuals 1955-1965 From the collection of T. Munk
170 * "FRISTER & ROSSMANN TYPEWRITERS"
See: https://www.fiddlebase.com/frister-rossmann/f-r-typewriters/
171 * Dial-a-Ribbon & Typing by Numbers
See: https://etzone.org/2022/05/05/dial-a-ribbon-typing-by-numbers
172 * etzone - a summary of Sharp's electronic daisy wheel models
See: https://etzone.org/sharp-2/
173 * etzone - a summary of Canon's electronic daisy wheel models
See: https://etzone.org/canon/
174 * etzone - a summary of Nakajima All's electronic daisy wheel models
See: https://etzone.org/nakajima-all/
175 * "Nakajima Model 800 Typewriter: The most surprising machine of ALL" by Robert Messenger
See: https://oztypewriter.blogspot.com/2012/07/nakajima-model-800-typewriter-most.html
176 * Établissements Japy Frères, Historique et technologie des machines à écrire, [1946]
From the collection of Georg Sommeregger
177 *Leeftijdslijst van Schrijfmachines [1958]
From the collection of Robert Godlieb

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