Marchant Calculating Machine Model

This is a model designed to demonstrate “simplified multiplication” on a Marchant calculating machine. It has a rectangular wooden base and a metal frame. The single bank of keys has nine square gray keys on it. The operating handle is on the right side. The shape of the keys suggests that this model is from the mid-1960s, when multiplication keys on SCM Marchant models such as the CFA were square. However, the rest of the mechanism, particularly the wooden base, suggest an earlier date.
A metal tag attached to the base reads: SIMPLIFIED (/) MULTIPLICATION. It also reads: M. A final mark reads: U.
Currently not on view
Object Name
calculating machine model
date made
ca 1960s
Physical Description
metal (overall material)
plastic (overall material)
wood (overall material)
overall: 18.8 cm x 12.3 cm x 30.5 cm; 7 13/32 in x 4 27/32 in x 12 in
place made
United States: New York
ID Number
catalog number
accession number
maker number
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Calculating Machines
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
Gift of SCM Corporation, Business Equipment Division
Additional Media

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