X-Ray Exposure Calculator
date: label: date made
content: ca 1919
setName: label: See more items in
content: Medicine and Science: Medicine
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1978.0435.150
label: collector/donor number
content: 416
label: catalog number
content: 1978.0435.150
label: accession number
content: 1978.0435
objectType: label: Object Name
content: calculator
physicalDescription: label: Physical Description
content: celluloid (overall material)
label: Measurements
content: overall: 12.4 cm x 6.3 cm x .3 cm; 4 7/8 in x 2 15/32 in x 1/8 in