Object Details
maker
Eiko Business Machine Company
Description
This handheld electronic calculator has a gray and black plastic case with an array of twenty-three square plastic keys. These include ten digit keys, a decimal point key, a total key, four arithmetic function keys, four memory keys, a percentage key, a clear key, and a clear entry key. Right of the top three keys is an on/off switch. Behind this is an eight-digit red LED display. A mark behind this reads: UNITREX 91PM.
A power jack is on the right side near the bottom.
The back of the calculator has a compartment for a nine-volt battery at the top. A sticker below this reads: ELECTRONIC CALCULATOR (/) DC 9 VOLT (/) USE 1 PIECE 9 V BATTERY (/) MADE IN HONG KONG.
Reference:
[Advertisement], Chicago Tribune, January 30, 1977, p. M1. Calculator on sale for $8.88, regularly $9.95. “Save $2”!
Location
Currently not on view
Credit Line
Gift of John B. Priser
date made
ca 1977
ID Number
1986.0988.243
catalog number
1986.0988.243
accession number
1986.0988
Object Name
electronic calculator
Physical Description
plastic (case; keys material)
metal (circuitry material)
paper (sticker material)
Measurements
overall: 1 in x 2 in x 5 3/8 in; 2.54 cm x 5.08 cm x 13.6525 cm
place made
China: Hong Kong
See more items in
Medicine and Science: Computers
Computers & Business Machines
Handheld Electronic Calculators
Data Source
National Museum of American History
Link to Original Record
Record ID
nmah_1305773