Federal railroad signal mechanism
date: label: date made
content: ca 1902
name: label: maker
content: Union Switch and Signal Company
notes: label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from the American Railway Association
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.308376
label: catalog number
content: 308376
label: accession number
content: 83893
objectType: label: Object Name
content: Switch, Signal?
label: Object Name
content: signal switch
physicalDescription: label: Measurements
content: overall: 29 in x 15 in x 24 in; 73.66 cm x 38.1 cm x 60.96 cm
label: Measurements
content: overall: p7113: 39 in x 49 in x 41 in; 99.06 cm x 124.46 cm x 104.14 cm
label: Measurements
content: overall: 28 7/8 in x 15 in x 19 3/4 in; 73.3425 cm x 38.1 cm x 50.165 cm