LMI ballast lamp
date: label: date made
content: ca 1917
notes: label: Description (Brief)
content: Brass medium bayonet base with single contact, glass insulator. Single arch wavy tungsten filament with crimp and soldered connectors, one filament support, flat press, insulator fill in stem. Inked on stem: "LMI". Paper label reads: "L.M.I. / Ballast Lamp / Signal Corps / U.S. Army."
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.320358
label: catalog number
content: 320358
label: accession number
content: 242268
objectType: label: Object Name
content: resistance
physicalDescription: label: Measurements
content: overall: 4 1/8 in x 1 1/4 in; 10.4775 cm x 3.175 cm