lens, signal
date: label: date made
content: ca. 1898
notes: label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Transportation, Railroad
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: TR.308388
label: catalog number
content: 308388
objectType: label: Object Name
content: Lens, Signal
label: Other Terms
content: Lens, Signal; Rail
physicalDescription: label: Physical Description
content: cardboard (envelope material)