General Motors type 71A "Visitron" photoelectric cell
date: label: date made
content: ca 1940
name: label: Maker
content: Western Union Corporation
label: maker
content: General Motors Corporation
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 Western Union Corporation
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.333198
label: accession number
content: 294351
label: accession number
content: 294351
label: catalog number
content: 333198
objectType: label: Object Name
content: Photocell
label: Object Name
content: photoelectric cell