Royal Model KMM Typewriter

Royal Model KMM Typewriter

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Description
The Royal Typewriter Company manufactured this Royal Magic Margin typewriter around 1940. The typewriter’s patented Magic Margin design allowed the typist to set both the left and right hand margins with a simple push of a lever. With easy margin-switching, the Royal KMM could easily address envelopes, tabulate figures, and create tables.
The Royal Typewriter Company was founded in 1906 by Thomas Fortunes Ryan and Edward B. Hess, with Ryan providing the capital and Hess providing the inventiveness. Hess owned over 150 patents, many of which were assigned to the Royal Typewriter Company. Hess’s most noteworthy patents related to increasing the ease of typing, including an accelerating typebar, anti friction roller escapement, Magic Margins, and selective touch control.
Object Name
typewriter
date made
1940
maker
Royal Typewriter Company
Physical Description
metal (overall material)
Measurements
overall: 9 in x 10 in x 14 1/2 in; 22.86 cm x 25.4 cm x 36.83 cm
ID Number
ME.311904
accession number
156624
catalog number
311904
serial number
2557008
Credit Line
Royal Typewriter Co., Inc.
See more items in
Work and Industry: Mechanisms
Computers & Business Machines
American Enterprise
Exhibition
American Enterprise
Exhibition Location
National Museum of American History
Data Source
National Museum of American History
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Comments

Quisiera saber la fecha de fabricación, gracias.
My mother used one as a dissertation typist in the late 1940s-early 1950s. Incredibly rugged. She could type 90 wpm without mistakes. Unimaginable in these days of light-touch computer keyboards.
The Royal Model KMM were used by the clerks at SHAEF during WWII.

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