Friden Model ST 10 Calculating Machine
date: label: date made
content: 1945
name: label: maker
content: Friden Calculating Machine Company
notes: label: Description
content: Friden Calculating Machine Company produced its “Supermatic Tabulating” model from about 1940 through 1949. This full-keyboard, non-printing electric stepped drum calculating machine has a metal frame painted gray and ten columns of light green and blue-green plastic number keys. A blank green plastic zeroing key is at the bottom of each column. Metal rods between the columns of keys turn to indicate decimal places. On the right are two columns of function keys.
label: Description
content: On the left is a ten-digit register that indicates numbers entered for multiplication. Below it is a block of nine light green digit keys, with a 0 bar below. These are surrounded by four function keys.
label: Description
content: Behind the number keys is a movable carriage with an 11-digit revolution register and a 21-digit result register. The result register has dark green plastic buttons above it that rotate to set up numbers. Ten numbered buttons are under the revolution register, spaced between the digits. Zeroing knobs for these registers are on the top right of the carriage. Decimal markers slide on bars between the two registers on the carriage.
label: Description
content: A mark on the sides and back of the machine reads: FRIDEN. A paper tag on the bottom of the machine, which also includes address and patent numbers, reads: MODEL-ST. A window at the front of the bottom shows the serial number: ST10-157950.
label: Description
content: The machine has a rubber-covered cord
label: Description
content: The date was given by the donor, who said that the initial price was $550.
label: Description
content: Compare 1984.3079.01, 1984.3079.02, 1984.3079.03, and MA.335427.
label: Description
content: References:
label: Description
content: Accession File.
label: Description
content: Date also given in Ernie Jorgenson, <I>Friden Age List</I>, Office Machine Americana, p. 2.
label: Location
content: Currently not on view
place: label: place made
content: United States: California, San Leandro
topic: label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Calculating Machines
label: See more items in
content: Science & Mathematics
creditLine: label: Credit Line
content: Gift of William L. Jackson
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MA.335421
label: catalog number
content: 335421
label: accession number
content: 319049
label: maker number
content: ST 10 157950
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: 20.6 cm x 45.5 cm x 34 cm; 8 1/8 in x 17 29/32 in x 13 3/8 in