APF Mark 30 Handheld Electronic Calculator
date: label: date made
content: ca 1975
name: label: maker
content: APF Electronics
notes: label: Description
content: This handheld electronic calculator has an array of ten digit keys and a decimal point key on the left with an array of function keys on the right. The main function keys are clear entry/clear, addition, subtraction, multiplication, division, percentage, and switching of the entered number and the result. Pressing a red F key changes these to memory keys, a square root key, an inverse key, and a squared key. The device has an eight-digit display and a compartment for a battery behind this.
label: Description
content: A label stuck to the back of the calculator reads in part: aPF mark 30 (/) SLIDE RULE CALCULATOR. It also reads: MARK 30 (/) Model No. Further text reads: R-21114 (/) Serial No. At the bottom of this label are the words: APF ELECTRONICS INC. (/) NEW YORK, N.Y. 10022 (/) MADE IN U.S.A. A mark on the inside of the lid for the battery compartment reads: JAPAN (/) K-140032.
label: Description
content: A June 11, 1975, advertisement in the <I>New York TImes</I> claims that the Mark 30 originally sold for $69.95 and was on sale at Macy's for $25.00. An October 1975 advertisement in the <I>New York Times</I> lists the APF Mark 30 as selling for $24.95, with an additional $3.95 for the adapter. An ad in the January 4, 1976, <I>Chicago Tribune</I> gives a price of $24.99. The price of the adapter is not listed. Advertisements for the calculator appeared in the <I>Los Angeles Times</I> in 1975 and 1976.
label: Description
content: References:
label: Description
content: <I>Chicago Tribune</I> January 4, 1976, p. 12.
label: Description
content: <I>New York Times</I>, June 11, 1975, p. 6.
label: Description
content: <I>New York Times</I>, October 23, 1975, p. 20.
label: Location
content: Currently not on view
setName: label: See more items in
content: Medicine and Science: Computers
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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: 1986.0988.167
label: catalog number
content: 1986.0988.167
label: accession number
content: 1986.0988
objectType: label: Object Name
content: electronic calculator
label: Other Terms
content: electronic calculator; Handheld
physicalDescription: label: Physical Description
content: plastic (case; screen; keys material)
label: Physical Description
content: paper (sticker material)
label: Physical Description
content: metal (wiring; socket for jack material)
label: Measurements
content: overall: 1 in x 3 in x 5 5/8 in; 2.54 cm x 7.62 cm x 14.2875 cm