General Electric "GEM" carbon lamp
date: label: date made
content: ca 1910
notes: label: Description (Brief)
content: General Electric metallized-carbon (GEM) lamp. Brass medium-screw base with glass insulator. Double-arch GEM filament with 1" center support, carbon paste connectors, two-piece leads, cotton insulator. Tipped straight-sided envelope. This is a second generation GEM lamp having a single filament instead of two filaments mounted in series. Reference: https://americanhistory.si.edu/lighting/history/blotters/blot116.htm.
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.320461.02
label: catalog number
content: 320461.02
label: accession number
content: 241402
objectType: label: Object Name
content: Light Bulb
label: Object Name
content: incandescent lamp
physicalDescription: label: Physical Description
content: carbon (overall material)
label: Measurements
content: overall: 5 in x 2 1/2 in; 12.7 cm x 6.35 cm