If I were 21...
date: label: date made
content: c1965
creditLine: label: Credit Line
content: Fargo Rubber Stamp Works through Mr CM Fossum
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1978.2139.01
label: accession number
content: 1978.2139
label: catalog number
content: 1978.2139.01
objectType: label: Object Name
content: button
physicalDescription: label: Measurements
content: overall: 1 3/4 in; 4.445 cm