Ve-Po-Ad Adder

Description
This black and gold notched band adder comes in a maroon cloth-covered cardboard notebook with a rusting stylus. It has eight columns of digits, and nine windows for displaying results. The narrow zeroing rod is at the top. With the object is a piece of the wrapping in which the adder was sent, showing the postage and date mailed.
With MA*323626, this object is F&T 43 (1&2) from the collection of Felt & Tarrant Manufacturing Company.
The VE-PO-AD (Vest Pocket Adder) was sold by Reliable Typewriter and Adding Machine Corporation of Chicago from at least 1924 through at least 1940.
References: Typewriter Topics, 57 (July 1924) p. 80.
Popular Science Monthly, 126 (January 1933) p. 107.
Popular Mechanics, 73 (January 1940) p. 127A, (February 1940) p. 151A, (March, 1940) p. 123A.
P. Kidwell, "Adders Made and Used in the United States," Rittenhouse, 1994, 8:78-96.
Location
Currently not on view
Object Name
adder
date made
1937
distributor
Reliable Typewriter & Adding Machine Corporation
maker
Reliable Typewriter & Adding Machine Corporation
Physical Description
cloth (overall material)
metal (overall material)
paper (overall material)
Measurements
overall: .8 cm x 8.3 cm x 12.6 cm; 5/16 in x 3 9/32 in x 4 31/32 in
place made
United States: Illinois, Chicago
place distributed
United States: Illinois, Chicago
ID Number
MA*323627
catalog number
323627
accession number
250163
subject
Mathematics
Science & Mathematics
Adder
See more items in
Medicine and Science: Mathematics
Adder
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
Gift of Victor Comptometer Corporation

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