Contex Adding Machine
date: label: date made
content: ca 1965
name: label: distributor
content: Bohn Duplicator Corporation
notes: label: Description
content: This non-listing adding machine has a gray plastic case and gray and white plastic keys. The ten white numeral keys are on the top right, with the zero bar three times as long as the others. To the left of the numeral keys are four function keys marked C, X, Div, and -. A red plastic place marker is controlled by two keys beneath it. The large actuating bar is on the right. Results appear in 11 windows at the front of the machine. Numbers up to ten digits long can be entered. A twelfth window, to the right of the others, shows the number of times the actuating bar has been pressed. Instructions for operating the machine are given on a sticker attached to the bottom. The four plastic feet are rubber-covered.
label: Description
content: The machine is marked on the front and on back: BDC CONTEX. It has serial number on a paper tag attached to the back: 516272. It is marked on the back: BOHN DUPLICATOR CORP. (/) New York 16, New York, U.S.A. (/) MADE IN DENMARK (/) PATENTS PENDING. Bohn would later distribute electronic calculators.
label: Description
content: Given to donor Michael Sherman by a friend, Jack Schuss, but never used by donor.
label: Description
content: Reference:
label: Description
content: Accession file.
label: Location
content: Currently not on view
place: label: place made
content: Denmark
label: place distributed
content: United States: New York, New York City
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 Michael Sherman
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1995.0018.01
label: accession number
content: 1995.0018
label: catalog number
content: 1995.0018.01
objectType: label: Object Name
content: adding machine
physicalDescription: label: Physical Description
content: plastic (overall material)
label: Physical Description
content: paper (overall material)
label: Physical Description
content: rubber (overall material)
label: Measurements
content: overall: 11 cm x 21 cm x 26 cm; 4 11/32 in x 8 9/32 in x 10 1/4 in