global time clock, geochron
setName: label: See more items in
content: Work and Industry: Mechanisms
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1993.3067.01
label: nonaccession number
content: 1993.3067
label: catalog number
content: 1993.3067.01
objectType: label: Object Name
content: Global Time Clock, Geochron