Allen Wales Model 9E Adding Machine

This full keyboard printing electric adding machine has a steel frame painted black (and green under the keyboard), and eight columns of black and white color-coded plastic keys. A green clearance key and subtraction and addition bars are right of the keyboard, as well as a repeat lever. Above the keyboard is a row of eight number dials under glass that shows the total (this is called a visible adding dial). Behind the dials are a non-print lever and total-subtotal lever on the right and a non-add lever on the left. Behind these is the printing mechanism and a 31-cm. movable carriage. There is a two-colored ribbon. Under the printing mechanism is the motor. Part of a roll of 6 cm. (2 1/2”) paper tape fits in the printing mechanism behind the carriage. The carriage has rubber handles, and the machine has four rubber feet.
The machine is marked on the front: DESK MODEL (/) ALLEN 9 WALES. It is marked at the base of the front with serial number: 9E30958. It is marked on the back: ALLEN WALES ADDING MACHINE CORP. (/) ITHACA. New YORK (/) MADE IN U.S.A.
The Allen Wales adding machine was a product of a company formed in 1926 by the merger of the Wales Adding Machine Company and the Allen Corporation. That firm would be acquired by National Cash Register in 1944.
Office Machine Research Inc., December, 1938, section 3.21, Allen Wales. Date suggested by documentation on NCR machines.
Currently not on view
Object Name
adding machine
date made
ca 1936
Allen Wales Adding Machine Corporation
Physical Description
glass (overall material)
plastic (overall material)
steel (overall material)
rubber (overall material)
paper (overall material)
overall: 27 cm x 0 cm x 42.5 cm; 10 5/8 in x 0 in x 16 23/32 in
place made
United States: New York, Ithaca
ID Number
catalog number
accession number
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Adding Machines
Data Source
National Museum of American History, Kenneth E. Behring Center
Additional Media

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