SCM Marchant Model SKA
date: label: date made
content: 1957
name: label: maker
content: SCM
notes: label: Description
content: This full-keyboard non-printing electric calculating machine has a metal frame painted blue and charcoal, and ten columns of color-coded blue-gray and white plastic keys. The rightmost three columns of keys are light blue; the next three, white; the next three, light blue; and the left column, white. Below the number keys is a row of blue keys with the numbers from 0 to 9. In front of them is a register with 10 keys. To the left are blue function keys and bars. Above the number keys is a row of ten windows that show the number entered.
label: Description
content: Behind the entry register is a movable carriage with a 20-digit result register and an 11-digit revolution register. The entry register has sliding decimal markers; the registers on the carriage, flipping decimal markers. A socket for a cord is at the back, but no cord is present.
label: Description
content: Marks on the sides and back of the machine read: MARCHANT. A mark on the bottom at the front reads: SKA 563169.
label: Description
content: For related documents see 313984.02 through 313984.04.
label: Description
content: Richard H. Hronik (1911–2003), the donor of this machine, held a number of patents in transportation engineering and did design work relating to railroad systems built for the Indian government. He went on to work for the firm of Melpar as a materials science engineer. He made donations to several Smithsonian units, including Electricity and Civil Engineering.
label: Description
content: References:
label: Description
content: Electricity Collections, National Museum of American History.
label: Description
content: Fédération Nationale des Chambres Syndicales de la Mécanographie, <I>Fédération de Reprise officielle des Machines à Ecrire, Machines à Calculer . . .</I>, Lyon, 1970, p. 71.
label: Location
content: Currently not on view
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 Richard H. Hronik
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MA.334384
label: catalog number
content: 334384
label: accession number
content: 313984
label: maker number
content: SKA 563169
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: 21.3 cm x 41 cm x 40 cm; 8 3/8 in x 16 5/32 in x 15 3/4 in