Object Details
- SCM
- Description
- 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.
- 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.
- Marks on the sides and back of the machine read: MARCHANT. A mark on the bottom at the front reads: SKA 563169.
- For related documents see 313984.02 through 313984.04.
- 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.
- References:
- Electricity Collections, National Museum of American History.
- Fédération Nationale des Chambres Syndicales de la Mécanographie, Fédération de Reprise officielle des Machines à Ecrire, Machines à Calculer . . ., Lyon, 1970, p. 71.
- Location
- Currently not on view
- Credit Line
- Gift of Richard H. Hronik
- 1957
- ID Number
- MA.334384
- catalog number
- 334384
- accession number
- 313984
- maker number
- SKA 563169
- Object Name
- calculating machine
- Physical Description
- metal (overall material)
- rubber (overall material)
- plastic (overall material)
- Measurements
- overall: 21.3 cm x 41 cm x 40 cm; 8 3/8 in x 16 5/32 in x 15 3/4 in
- See more items in
- Medicine and Science: Mathematics
- Calculating Machines
- Science & Mathematics
- National Museum of American History
- Subject
- Mathematics
- Record ID
- nmah_690734
- GUID (Link to Original Record)
- https://n2t.net/ark:/65665/ng49ca746a5-1057-704b-e053-15f76fa0b4fa
