Kalkometer
date: label: date made
content: ca 1960
notes: label: Description
content: This notched band adder has a metal front and back, painted gray and black. There are eight columns, eight bands, and eight windows below the bands to show the result. The columns are hooked at the top for carrying and at the bottom for borrowing. Along each column, a row of digits along the right provides for addition and, along the left, for subtraction. Across the top is a zeroing bar. The stylus fits across the inside top of a green leather carrying case. The machine is marked: MADE IN U.S.A. It is also marked: Adds [/] Subtracts [/] Aids in Multiplication.
label: Description
content: This small device was given to the Smithsonian by economic consultant Frank M. Graves.
label: Location
content: Currently not on view
place: label: place made
content: United States
topic: label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Adder
label: See more items in
content: Science & Mathematics
creditLine: label: Credit Line
content: Gift of Frank M. Graves
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1979.0601.01
label: accession number
content: 1979.0601
label: catalog number
content: 1979.0601.01
objectType: label: Object Name
content: adder
physicalDescription: label: Physical Description
content: metal (overall material)
label: Physical Description
content: leather (overall material)
label: Measurements
content: overall: 1 cm x 10 cm x 16 cm; 13/32 in x 3 15/16 in x 6 5/16 in