Postal Telegraph 150 ohm relay
notes: label: Description (Brief)
content: Postal Telegraph 150 ohm relay with horizontal horseshoe magnet, "H" stamped on one pole, brass tag: "Postal Telegraph Cable Co. / 150 [ohms]".
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.241556.332
label: accession number
content: 241556
label: catalog number
content: 241556.332
objectType: label: Object Name
content: telegraph relay
physicalDescription: label: Measurements
content: overall: 3 1/4 in x 3 1/2 in x 7 1/2 in; 8.255 cm x 8.89 cm x 19.05 cm