slack detector
date: label: Date made
content: 1974
name: label: maker
content: Pulse Electronics Inc.
notes: label: Location
content: Currently not on view
place: label: place made
content: United States: Maryland, Rockville
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: 1985.0876.02
label: accession number
content: 1985.0876
label: catalog number
content: 1985.0876.02
label: catalog number
content: 85.0876.02
label: accession number
content: 1985.0876
objectType: label: Object Name
content: Slack Detector
label: Other Terms
content: Slack Detector; Rail