Addometer Model C
date: label: date made
content: 1951
name: label: distributor
content: H. & M. Button Company
label: maker
content: Reliable Typewriter & Adding Machine Corporation
notes: label: Description
content: This eight-wheeled stylus-operated non-printing adding machine has plastic wheels and a metal frame. The first wheel is red and has eight holes near its edge for adding fractions. The second wheel from the left is white and has 12 holes near its edge for adding inches. The remaining six wheels each have ten holes around the edge. The rightmost is red, the next three are white, and the next two are red. All the wheels are labeled around the outside with digits for use in addition, and around the inside with digits for use in subtraction. A steel stylus and a clearing bar fit into the right side.
label: Description
content: The top edge of the instrument has an 11-inch scale of equal parts, divided to sixteenths of an inch. A sales receipt indicates the machine was purchased September 19, 1951, by Frederick Mathesius for $12.95. A second sheet gives operating instructions. The machine is stored in a tan and purple cardboard box. It was made by Reliable Typewriter & Adding Machine Company of Chicago, Illinois.
label: Description
content: References:
label: Description
content: <I>Typewriter Topics</I>, vol. 66, August, 1927, pp. 36-37 (announced as coming in September - $10.00), <I>Typewriter Topics</I>, vol. 72, June, 1929, p. 29 (cost $15.00); <I>Office Appliances</I>, vol. 87, January, 1948, p. 138, 182 (price $12.95); <I>Office Appliances</I>, vol. 98, Oct., 1953, p. 233 (price $14.95).
label: Location
content: Currently not on view
place: label: place made
content: United States: Illinois, Chicago
label: place distributed
content: United States: New York, Rochester
topic: label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Adding Machines
label: See more items in
content: Science & Mathematics
creditLine: label: Credit Line
content: Gift of Douglas E. Evelyn & Martha M. Evelyn
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1996.0220.01
label: catalog number
content: 1996.0220.01
label: accession number
content: 1996.0220
objectType: label: Object Name
content: adding machine
physicalDescription: label: Physical Description
content: paper (overall material)
label: Physical Description
content: plastic (overall material)
label: Physical Description
content: metal (overall material)
label: Measurements
content: overall: 1.8 cm x 30.5 cm x 6.5 cm; 23/32 in x 12 in x 2 9/16 in