SCM Marchant Model TKM or Tenkeymatic Calculating Machine
date: label: date made
content: ca 1960
name: label: distributor
content: SCM Corporation
label: maker
content: Singer Company. Friden Division
notes: label: Description
content: By 1960 the Marchant Calculating Machine Company had been absorbed and was part of SCM (Smith Corona Marchant) Corporation. When the company wished to introduce a ten-key printing electric calculating machine, it decided to import and rename a machine made by the German firm of Hamann. Dubbed the SCM Marchant TKM, or Tenkeymatic, it sold from about 1960.
label: Description
content: This example of the machine has a blue-gray frame, ten keys for entering numbers, and three registers. The register at the top of the machine (Register I) has nine number dials that indicate the number set up most recently using the keyboard.
label: Description
content: The two other registers are adjacent to and above the keyboard. On the left is an eight-digit register that serves as a revolution counter (Register II). Right of it are the 16 windows of the result register (Register III). In division, the result register shows the remainder. In front of the registers is the block of square white plastic digit keys, with the zero bar below. To the right are gray plastic addition and subtraction bars, carriage shift keys, a “DIV” key, and a key with an arrow pointing up. To the left of the digit keys are gray plastic keys used in multiplication and clearance.
label: Description
content: Levers between the registers shift decimal markers. A knob on the left side of the machine controls the termination of division according to the number of orders set. A metal handle slides out from the bottom front so one can carry the machine. There are two rubber feet. The other two are missing. The machine has no cord.
label: Description
content: The block of number keys is marked: 7 8 9 (/) 4 5 6 (/) 1 2 3 (/) 0; MARCHANT; TENKEYMATIC; SCM; WA [. . .] GTON UNIFIED (/) SCHOOL DISTRICT (/) 5357.
label: Description
content: References:
label: Description
content: SCM Marchant, <I>Tenkeymatic Service Instruction Book</I>, 1960 (1984.3084.63.3).
label: Description
content: “1964 Marchant Calculators and Adding Machine, Price List,” 1963, p. 12. (1984.3084.90). This reference lists the capacity of the machine as 8x9x16. The Government Services Administration price for the Tenkeymatic was $475 plus tax. It is listed as foreign-made.
label: Location
content: Currently not on view
place: 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: Calculating Machines
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content: Science & Mathematics
creditLine: label: Credit Line
content: Gift of SCM Corporation, Business Equipment Division
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MA.335376
label: catalog number
content: 335376
label: accession number
content: 318944
objectType: label: Object Name
content: calculating machine
physicalDescription: label: Physical Description
content: metal (overall material)
label: Physical Description
content: plastic (overall material)
label: Physical Description
content: rubber (overall material)
label: Measurements
content: overall: 21.5 cm x 38.5 cm x 39 cm; 8 15/32 in x 15 5/32 in x 15 11/32 in