Golden Gem Adding Machine

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This small, stylus-operated non-printing adding machine has a black steel frame and seven metal chains. A stylus is placed in the link next to a digit and pulled down to the bottom of the column to enter the digit. Sums appear in seven windows above the chains. There is a clearance knob on the right side and a bent metal piece that can be used to prop up the instrument. The green leather case is stored with the instrument. The stylus is missing.
The instrument is marked on a tag on the right edge of the top: GOLDEN GEM (/) ADDING MACHINE. It is marked on a tag on the left edge of the top: AUTOMATIC ADDING MACHINE MFRS. (/) NEW YORK, U.S.A.. It is marked on the bottom edge of the top: PAT. MAR.1-04-MAR.27-06-MAR.19-07 (/) UNITED STATES AND FOREIGN PATENTS PENDING. The serial number, stamped on the right side, is 400805.
Compare to MA*323621.
This example of the Golden Gem formerly belonged to John L. Newbold, father-in-law of the donor, who had owned Merchants Moving and Transfer Company.
Ads in Scientific American, vol. 110, Jan. 17, 1914 (according to this ad, the machine cost $10 and over 80,000 in use); vol. 112, April, 1915, p. 370 (according to this ad, the machine still cost $10 and over 100,000 were in use).
Accession file.
Currently not on view
date made
Automatic Adding Machine Company
place made
United States: New York, New York
Physical Description
steel (overall material)
leather (overall material)
overall: 3 cm x 11.7 cm x 8 cm; 1 3/16 in x 4 19/32 in x 3 5/32 in
ID Number
accession number
catalog number
maker number
Credit Line
Gift of Mary L. Newbold
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Adding Machines
Data Source
National Museum of American History, Kenneth E. Behring Center


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