Contact Board Associated with Herman Hollerith
date: label: date made
content: ca 1900
name: label: maker
content: Hollerith, Herman
notes: label: Description
content: This wooden board has six switches on it, and six metal nubs. The nubs and one end of each switch are screwed into the board. On the opposite side are contacts for electrical wires. Twelve nails in the board on top assure that one switch can only meet one nub. Holes at opposite ends of the board allow it to be attached to a table, with a groove in the back for wires.
label: Description
content: Compare to switches on the Hollerith tabulating system with museum number MA.317982.05.
label: Location
content: Currently not on view
topic: label: web subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Computers & Business Machines
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content: Tabulating Equipment
creditLine: label: Credit Line
content: Gift of the Estate of Herman Hollerith, Jr.
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MA.335637
label: accession number
content: 1977.0114
label: catalog number
content: 335637
objectType: label: Object Name
content: contact board
physicalDescription: label: Physical Description
content: rubber (overall material)
label: Physical Description
content: wood (overall material)
label: Physical Description
content: brass (overall material)
label: Measurements
content: overall: 3.8 cm x 8.3 cm x 6 cm; 1 1/2 in x 3 9/32 in x 2 3/8 in