Friden Model STW 10 Calculating Machine
date: label: date made
content: ca 1954
name: label: maker
content: Friden, Inc.
notes: label: Description
content: This stepped drum full-keyboard electric non-printing calculating machine has a metal frame painted brownish gray (taupe) and ten columns of brown and gray plastic number keys, with a blank gray plastic zeroing key at the bottom of each column. Metal rods between columns of keys turn under the keyboard to indicate decimal places. A small brown and tan bar slides to the right to reset the decimal rods. The capabilities of the Friden STW-10 are quite similar to those of the earlier ST-10, although the exterior design and color are different. The model was introduced in 1949 and manufactured through 1966.
label: Description
content: On the right are two columns of function bars. On the left is a ten-digit register that indicates numbers entered for multiplication. Below it is a block of nine white digit keys, with a 0 bar below. These are surrounded by three levers and four function keys.
label: Description
content: Behind the number keys is a movable carriage with an 11-digit revolution register and a 20-digit result register. Taupe plastic buttons above the result register rotate to set up numbers. Ten numbered buttons under the revolution register are spaced between the digits. A zeroing knobs for the registers is on the top right of the carriage. All three registers have sliding decimal markers.
label: Description
content: The machine has four hard rubber feet. There is a rubber cord and a tan plastic cover. A mark on the bottom of the machine reads: S82 (/) STW 10. The original serial number next to the model number has been effaced. Marks on the back and side read: FRIDEN. A mark on the cover reads: Friden (/) AUTOMATIC CALCULATOR. A mark on a sticker on the bottom of the machine reads: FRIDEN, INC. (/) SAN LEANDRO, CALIFORNIA, U.S.A. A mark on the cord reads: SINGER.
label: Description
content: Compare MA.334379, MA.335419 and 1984.3079.04.
label: Description
content: Reference:
label: Description
content: Carl Holm, “Milestones in the Development of Friden.”
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 The Singer Company, Friden Division
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MA.334379
label: accession number
content: 313935
label: catalog number
content: 334379
label: maker number
content: S-82
objectType: label: Object Name
content: calculating machine
physicalDescription: label: Physical Description
content: metal (overall material)
label: Physical Description
content: rubber (overall material)
label: Physical Description
content: plastic (overall material)
label: Measurements
content: overall: 21.7 cm x 46 cm x 36.8 cm; 8 17/32 in x 18 1/8 in x 14 1/2 in