M-20
notes: label: Location
content: Currently not on view
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: 1981.1009.14
label: accession number
content: 1981.1009
label: catalog number
content: 1981.1009.14
objectType: label: Object Name
content: Relative Humidity Controller/Recorder, Duplex
physicalDescription: label: Measurements
content: overall: 24 in x 14 in x 6 1/2 in; 60.96 cm x 35.56 cm x 16.51 cm