Marchant Model 10EFA Calculating Machine, Figuremaster

This full-keyboard non-printing electric proportional gear calculating machine has a blue metal frame with a black carriage. It has ten columns of green and white all-plastic number keys. At the base of each column is a gray tabulator set key. These keys are numbered from 1 on the right to 10 on the left.
Right of the number keys are a small switch; line up, division, and stop keys; subtraction and addition bars; a non-shift key, a repeat key, and a negative multiplication bar; and two carriage shift keys. In front of these are clearance keys for the tab set, the keyboard, and the dials. Right of these is a column of ten keys for automatic multiplication. Odd digit keys are concave. Above the number keys is a row of ten windows to show a number set up.
Behind this register is a movable carriage with an 20-window result register and an ten-window revolution register. The registers on the carriage have reversible decimal markers. The motor is at the back of the machine, inside the case. The machine has four rubber feet.
Marks on the sides and back of the machine read: MARCHANT. A metal tag attached to the bottom reads: 10EFA-351117 A piece of tape atop the machine reads: 2-130. Remnants of a black plastic label attached to the bottom of the machine read: Figuremaster.
According to the donor, a collector of calculating machines, this example was manufactured in 1951 and originally sold for $787.00.
Accession file.
Currently not on view
date made
Marchant Calculating Machine Company, Inc.
place made
United States: California, Oakland
Physical Description
metal (overall material)
plastic (overall material)
rubber (overall material)
overall: 21 cm x 41 cm x 41 cm; 8 9/32 in x 16 5/32 in x 16 5/32 in
ID Number
catalog number
accession number
maker number
Credit Line
Gift of William L. Jackson
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Calculating Machines
Data Source
National Museum of American History, Kenneth E. Behring Center


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