Marchant Calculating Machine, Experimental

Description
In the 1950s several manufacturers of full-keyboard adding and calculating machines began to experiment with building machines that had only ten digit keys, carried out all four arithmetic operations, and printed the results. This is an experimental ten-key printing electric calculating machine made by Marchant.
The model has three rows of discs above the keyboard. The first row has nine wheels that show the number entered (only two of these wheels show numbers at present) on a ten-key keyboard. The second row has the 18 wheels for a result register, and the uppermost row has the ten wheels of a revolution counter. There are holes below the registers for decimal markers. The first row of discs shifts as numbers are entered.
The machine has a metal case painted two shades of green and keys in two other shades of green. Right of the number keys are negative multiplication, multiplication, shift, and clear keys. To the left are subtraction, repeat, and addition bars, and dividend, divide, and stop keys. Further to the left is a place for a paper tape, as well as LIST, CALC, subtotal, and total keys. Eleven discs print results. The plastic cover is black.
The front, back and cover have marks that read: MARCHANT. The digit keys read: 7 8 9 (/) 4 5 6 (/) 1 2 3 (/) 0.
Location
Currently not on view
Object Name
calculating machine
date made
ca 1958
maker
Marchant Calculating Machine Company
Physical Description
metal (overall material)
plastic (overall material)
Measurements
overall: 18 cm x 38 cm x 34.5 cm; 7 3/32 in x 14 31/32 in x 13 19/32 in
place made
United States: California, Oakland
ID Number
MA*335374
catalog number
335374
accession number
318944
subject
Mathematics
Science & Mathematics
Calculating Machines
See more items in
Medicine and 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

Visitor Comments

Add a comment about this object

**Please read before submitting the form**

Have a comment or question about this object to share with the community? Please use the form below. Selected comments will appear on this page and may receive a museum response (but we can't promise). Please note that we generally cannot answer questions about the history, rarity, or value of your personal artifacts.

Have a question about anything else, or would you prefer a personal response? Please visit our FAQ or contact page.

Personal information will not be shared or result in unsolicited e-mail. See our privacy policy.

Image CAPTCHA
Enter the characters shown in the image.