Quick-Adder
date: label: date made
content: 1950s
notes: label: Description
content: Some simple adding machines were designed for consumers seeking to track their purchases. This small red plastic device has three white keys on top for entering dollars, dimes, and cents. The dollar wheel is numbered from 0 to 19. Pushing a key advances a wheel below one digit. Results appear in three windows on the front of the instrument. There is a carry. The instrument is held together by metal rivets. The mechanism is encased.
label: Description
content: The machine is marked: QUICK-ADDER. It is also marked: NO.6319 MADE IN HONG KONG. It is also marked: DESIGN REGD.
label: Description
content: In 1950, Theodore C. Romanchek (1897-1985) of Los Angeles took out a United States copyright for the term “quick adder.” From this date, and the general style of the object, it seems likely that it dates from the 1950s. It came to the Museum from the collection of John White.
label: Location
content: Currently not on view
place: label: place made
content: China: Hong Kong
topic: label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Adding Machines
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content: Science & Mathematics
creditLine: label: Credit Line
content: Gift of John White
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1981.0922.17
label: accession number
content: 1981.0922
label: catalog number
content: 1981.0922.17
objectType: label: Object Name
content: adding machine
physicalDescription: label: Physical Description
content: plastic (overall material)
label: Physical Description
content: metal (overall material)
label: Measurements
content: overall: 5.1 cm x 9.2 cm x 2 cm; 2 in x 3 5/8 in x 25/32 in