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Rochester: Typewriter Serial Number Age List

Also known as • American Pocket

Serial Number Table Last Edited: 08/18/16 11:08
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.

  1922-1923 Patents:
US1412351
Filed May 19, 1919 • Issued Apr 11, 1922
US1531103
Filed Jun 15, 1921 • Issued Mar 24, 1925
US1544842
Filed Nov 2, 1922 • Issued Jul 7, 1925
Thrust-action 3-bank portable designed by Wellington Parker Kidder, announced and manufactured in small quantities in 1923 by Rochester Industries, Inc. at 309 St. Paul Street, Rochester, New York, USA.
Kidder partnered with Alfred John Leggett, a Rochester banker, to produce the design. Originally, the machine was to be named the Midget.
Rochester Industries acquired the Leggett Portable Typewriter Corporation to resolve potential patent issues with Harry Bates.
Rochester also produced the American Pocket Typewriter in 1922, probably as a prototype for the Rochester.
1,16,27,108
Models and s/n Y M D Remarks Ref.
American Pocket
1922 March 1922: Leggett Portable Typewriter Co. of Boston, Mass, USA is incorporated with a capitalization of 5,000 shares of no par value.
June 1922: Leggett announces location of a factory in Boston and the formation of a manufacturing company with a Delaware charter, organized with a capital of 100,000 shares of common stock with no par value. It is shortly expected to announce the issue of $1,000,000 of preferred stock.
American Pocket Typewriter built by Leggett in Boston. Only a few were produced, beginning in June 1922. These were probably prototypes for the Rochester.
December 1922: Rochester Industries organizes and announces the Midget typewriter. This is soon changed to Rochester.
1,65,82,108
Rochester
1923 3 bank thrust action portable, 2 shift keys, backspacer, keyboard lock and release, shift key lock, 10" carriage, carriage release lever, single and double line spacer, line release, adjustable margin stop. Prints 84 characters.
27
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