patent model, Farmer magnetic telegraph, US #81485
date: label: Date made
content: 1868
name: label: maker
content: Farmer, Moses G.
notes: label: Description (Brief)
content: Model for US Patent 81,485, Magnetic Telegraph, issued 25 August 1868 to Moses G. Farmer. Three solenoids mounted on a wooden base with key switch and four binding posts. Brass lever, hard rubber knob on key, magnet coils 1.75" long. Plate marked: "Moses G. Farmer, Salem, Mass. 1866". Marked on patent tag: M. G. Farmer (/) magnetic telegraph (/) "Patented (/) Aug. 25, 1865. On attached metal plate: "Moses G. Farmer (/) Salem, Mass, 1866.
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.325793
label: catalog number
content: 325793
label: accession number
content: 249602
label: patent number
content: 81,485
objectType: label: Object Name
content: Telegraph, Magnetic
label: Object Name
content: magnetic telegraph
physicalDescription: label: Measurements
content: overall: 2 in x 5 1/2 in x 10 3/4 in; 5.08 cm x 13.97 cm x 27.305 cm