W Calculator, an Adder
date: label: date made
content: ca 1955
notes: label: Description
content: After World War II, inexpensive adders were produced in both Europe and Asia. This example has 8 notched bands on the front, with space at the top of each band for carrying and at the bottom for borrowing. Totals of up to 9 digits appear in round openings above the bands.The front is ferrous metal painted gold, black, and white. The back is black plastic. A metal stylus for entering numbers is on the right and a zeroing bar extends across the top.
label: Description
content: A mark at the top of the adder reads: W CALCULATOR. A mark below the bands reads: ADD (/) SUBTRACT (/) MULTIPLY. A mark at the bottom of the back reads: MADE IN WEST GERMANY.
label: Description
content: The object was collected by the donor.
label: Description
content: Compare to adders MA.336448 and 1980.0787.01, which sold as Wizard calculating machines.
label: Location
content: Currently not on view
place: label: place made
content: Germany
topic: label: Subject
content: Adder
label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Adder
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content: Measuring & Mapping
creditLine: label: Credit Line
content: Gift of Michael B. Schiffer
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 2013.0197.01
label: accession number
content: 2013.0197
label: catalog number
content: 2013.0197.01
objectType: label: Object Name
content: adder
physicalDescription: label: Physical Description
content: metal (stylus material)
label: Physical Description
content: metal (bands material)
label: Physical Description
content: metal (zeroing bar material)
label: Physical Description
content: metal (front material)
label: Physical Description
content: plastic (back material)
label: Measurements
content: overall: .8 cm x 9.4 cm x 15.2 cm; 5/16 in x 3 11/16 in x 5 31/32 in