Adding and Calculating Machines
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Patented 1902 ~ Marketed 1908
The Adder Cash Register Syndicate Ltd.
|Beach Calculating Machine
Advertised 1904. Still on market in 1906.
The Book-Keeper Publishing Co., Ltd
1904 Price $50
"This machine is built up with a series of wheels and segments, the
latter fitted with teeth on their outer edge,
the machine being operated
by placing the finger on the desired tooth and carrying it
|Triumph Adding Machine
Patented 1907-09 ~ Advertised 1914
Triumph Precision Machine Co.
New York, NY
|Mercantile Adding Machine
Mercantile Adding Machine Co.
1909 Price $85 (Model 3)
|Barrett Figuring Machine
(a.k.a. Barrett Adding Machine,
Barrett Portable Adding & Computing Machine)
Barrett Adding Machine Co. (1910-14)
Grand Rapids, MI (1910-11), Philadelphia, PA (1913)
Lanston Monotype Machine Co., Philadelphia, PA
1911-1913 Price $100 (Model No. 6), $150 (No. 10), $175 (No. 10X)
1914 Price $110 (Model No. 6), $160 (No. 10), $185 (No. 10X)
The company also made adding-listing machines that printed.
Model No. 10X and No. 10, 1914 ad
|Austin Visible Adding
1912 ~ Advertised 1914-15
Austin Adding Machine Corp.
1914 and 1915 Price reduced from $125 to $45
Courtesy of the Museum of Business History
Photo courtesy of Darryl Rehr
|American Adder (a.k.a.
American Adding Machine No. 5)
Patented 1912-18 ~ Introduced 1913 ~ Advertised 1913-27
1913-14 Price $35. 1924-27 Price $39.
American Can Co., Chicago, IL. (1913-18)
American Adding Machine Co., Chicago, IL (1924-27)
"The index finger is placed in the corrugation on the number to be
set up and
the lever for that column raised by the thumb until it is stopped
by the finger."
The company also made an adding-listing machine (Model No. 4).
Introduced c. 1914
Siriuswerk, Nördlingen, Bayern
Courtesy of the Museum
of Business History and Technology
|Commonwealth Adding Machine
Commonwealth Adding Machine Co.
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