Teal LC811 Handheld Electronic Calculator

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This handheld electronic calculator has a metal case with plastic trim and an array of twenty-three rectangular plastic keys with rounded corners. These include ten digit keys, a decimal point key, a change sign key, a total key, four arithmetic function keys, a percentage key, a clear key, a clear entry key, and three memory keys. To the left in the top row of keys is an on/off switch. Behind this is an eight-digit liquid crystal display. Text above this reads: TEAL LC811.
The back edge of the calculator has the cover for a compartment that would hold two silver oxide batteries.
A sticker on the back of the calculator reads in part: TEAL LC811 (/) ELECTRONIC CALCULATOR. It also reads in part: SERIAL NO. 153744 (/) TEAL INDUSTRIES, INC. TORRANCE, CALIF. 90502 (/) MADE IN JAPAN.
The calculator has a black plastic sleeve that serves as a carrying case, and a leaflet with instructions.
TEAL calculators were made in Japan by Tokyo Electronic Application Laboratory Ltd.
[Advertisement], Washington Post, July 4, 1977, p. A8. Teal LC811 regularly costs $24.95, on sale for $19.95.
Teal Industries, Inc., Operating Instructions TEAL LC811 Super Thin Electronic Calculator, Torrance, CA (no date).
In 1978 Teal would introduce its Photon solar calculator, which had not only a liquid crystal display but was solar powered. See [Advertisement], Popular Science, vol. 213, #2, August 1978, p. 171.
Currently not on view
date made
ca 1977
Teal Industries
Tokyo Electronic Application Laboratory Ltd.
place made
Physical Description
metal (case material)
plastic (carrying case; keys; battery compartment material)
paper (instructions material)
overall: 1/2 in x 2 3/4 in x 4 1/2 in; 1.27 cm x 6.985 cm x 11.43 cm
ID Number
accession number
catalog number
Credit Line
Gift of John B. Priser
See more items in
Medicine and Science: Computers
Handheld Electronic Calculators
Computers & Business Machines
Data Source
National Museum of American History


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