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Imperial (Silver-Seiko): Model Galleries

200 220 230 300 (Electric)

Imperial (Silver-Seiko): Typewriter Serial Number Age List

Brand: Imperial Also known as • Ajax • Briton • Good Companion • Imperial (Silver-Seiko) • Simpsons (Imperial) • Typo (Imperial)

Serial Number Table Last Edited: 12/18/14 06:37
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.

Models and s/n Y M D Remarks Ref.
Platen Diameter       unknown 24
Portables       Silver-Seiko Portables made in Japan and badged under Royal and Imperial marques.
Models: Royal Swinger, Sprite, Mustang, Caravan, Fleetwood. Imperial 220, Gemini.
 
           
Imperial 200 / Royal Sprite          
up to 1050498 1969       6
1050499 1970       6
1328174 1971       6
2148617 1972       6
2595230 1973       6
           
Imperial 220 / Royal Fleetwood          
up to 8712165 1969       6
8712166 to 8838490 1970       6
1341920 1971       6
2204119 1972       6
2660029 1973       6
           
Model 280          
9089534 1976       30
           
Signet          
up to 1339103 1970       6
1338103 1971       6
2131052 1972       6
           
Model 300          
1105140 to 1106039 1970       6
8854489 to 8944682 1970       6
1502084 1971-1972       6
2519681 1973       6
           
Fleetwood          
2249093 1972       6
2558046 1973       6
           
Imperial Gemini / Royal Swinger          
1171162 1971       30
           
Heritage          
20245644 1978       30
20313359 1979       30
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