APF Mark 1920 Handheld Electronic Calculator
date: label: date made
content: ca 1980
name: label: maker
content: APF Electronics
notes: label: Description
content: This brown- and gold-colored handheld electronic calculator has an array of twenty-five rectangualr plastic keys. These include ten white plastic digit keys; a white decimal point key; keys for the four arithmetic functions, percentage, and square roots; a clear entry/clear key; an equals key; and five memory keys. The off key is in the upper left corner of the keyboard. Behind the keyboard is an eight-digit liquid crystal display. A mark below the keyboard reads: aPF MARK 1920 (/) AUTO SHUT OFF.
label: Description
content: A mark printed on the back reads: aPF MARK 1920 (/) LIQUID CRYSTAL CALCULATOR (/) RATING: DC 3V 0.2 MW (/) (1.5V BATTERY x 2) (/) (SILVER OXIDE G13 x 2) (/) APF ELECTRONICS INC (/) NEW YORK, N. Y. 10022 (/) HONG KONG. A further mark, partly obscured, reads: SERIAL NO 5[. . .]54.
label: Description
content: The calculator fits in a plastic jacket which has been mended with red duct tape.
label: Description
content: A 1980 advertisement lists the APF Mark 1920 as regularly priced at $14.99 and on sale for $11.97.
label: Description
content: Reference:
label: Description
content: <I>Chicago Tribune</I>, August 27, 1980, p. F6.
label: Location
content: Currently not on view
place: label: place made
content: China: Hong Kong
setName: label: See more items in
content: Medicine and Science: Computers
label: See more items in
content: Computers & Business Machines
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content: Handheld Electronic Calculators
creditLine: label: Credit Line
content: Gift of John B. Priser
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1987.0435.29
label: accession number
content: 1987.0435
label: catalog number
content: 1987.0435.29
objectType: label: Object Name
content: electronic calculator
physicalDescription: label: Physical Description
content: metal (case; screws material)
label: Physical Description
content: plastic (keys; edges; case material)
label: Measurements
content: overall: 3/8 in x 2 3/8 in x 3 7/8 in; .9525 cm x 6.0325 cm x 9.8425 cm