Carbon telephone device demonstrated by William Hammer
date: label: date made
content: 1889
name: label: maker
content: Hammer, William J.
notes: label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from International Business Machines, Inc., William J. Hammer Collection
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.241402.71
label: accession number
content: 241402
label: catalog number
content: 241402.71
objectType: label: Object Name
content: telephone demonstration
physicalDescription: label: Measurements
content: overall: 4 in x 10 1/2 in x 13 in; 10.16 cm x 26.67 cm x 33.02 cm