Smithsonian museums continue to be closed to support the effort to contain the spread of COVID-19. Read a message from our director, and check our website and social media for updates.

APF Mark 1920 Handheld Electronic Calculator

APF Mark 1920 Handheld Electronic Calculator

<< >>
Usage conditions apply
Downloads
Description
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.
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.
The calculator fits in a plastic jacket which has been mended with red duct tape.
A 1980 advertisement lists the APF Mark 1920 as regularly priced at $14.99 and on sale for $11.97.
Reference:
Chicago Tribune, August 27, 1980, p. F6.
Location
Currently not on view
Object Name
electronic calculator
date made
ca 1980
maker
APF Electronics
place made
China: Hong Kong
Physical Description
metal (case; screws material)
plastic (keys; edges; case material)
Measurements
overall: 3/8 in x 2 3/8 in x 3 7/8 in;.9525 cm x 6.0325 cm x 9.8425 cm
ID Number
1987.0435.29
accession number
1987.0435
catalog number
1987.0435.29
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
Nominate this object for photography.   

Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.

If you would like to know how you can use content on this page, see the Smithsonian's Terms of Use. If you need to request an image for publication or other use, please visit Rights and Reproductions.

Note: Comment submission on our collection pages is temporarily unavailable. Please check back soon!

If you have a question or require a personal response, please visit our FAQ or contact page.