homemade spark gap for wireless telegraphy
notes: label: Description (Brief)
content: Homemade spark gap for wireless telegraphy, no extant marks.
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.241556.335
label: accession number
content: 241556
label: catalog number
content: 241556.335
objectType: label: Object Name
content: spark gap
physicalDescription: label: Measurements
content: overall: 2 3/4 in x 5 1/2 in x 3 in; 6.985 cm x 13.97 cm x 7.62 cm