Western Electric model 509-W radio headset
date: label: date made
content: ca 1919
label: date made
content: c 1919
name: label: maker
content: Western Electric
notes: label: Description (Brief)
content: Marked: "Made in U.S.A. / Western Electric / Pat. In U.S.A. / July 29, 1918 / 509-W / 1100". Standard headset. 2200 Ohms DC resistance. 2.5" cup diameter. One alligator clip and one standard lug at cord end. Reference: Clymer-Greenwood, page 156.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Franklin Wingard
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.321699
label: catalog number
content: 321699
label: accession number
content: 241556
objectType: label: Object Name
content: headset
physicalDescription: label: Measurements
content: overall: 7 1/2 in x 6 1/2 in x 3 in; 19.05 cm x 16.51 cm x 7.62 cm