Johnson Standard Exposure Calculator
date: label: Date made
content: ca 1930
notes: label: Location
content: Currently not on view
setName: label: See more items in
content: Medicine and Science: Chemistry
label: See more items in
content: Photography
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 2006.0098.0516
label: accession number
content: 2006.0098
label: catalog number
content: 2006.0098.0516
objectType: label: Object Name
content: Exposure Scale
physicalDescription: label: Physical Description
content: cellulose nitrate (overall material)
label: Measurements
content: overall: 6.6 cm; x 2 5/8 in
label: Measurements
content: overall: 3/16 in x 2 1/2 in; .47625 cm x 6.35 cm