Camera Obscura, (Improvement In. )
date: label: date patented
content: 1875-11-23
name: label: patentee
content: Kellett, Thomas A.
setName: label: See more items in
content: Work and Industry: Photographic History
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PG.48866.736
label: accession number
content: 48866
label: catalog number
content: 0736
objectType: label: Object Name
content: Patent Model
physicalDescription: label: Physical Description
content: handmade (overall production method/technique)
label: Physical Description
content: wood, metal, paper (overall material)
label: Measurements
content: overall: 1 1/2 in x 5 3/4 in x 6 in; 3.81 cm x 14.605 cm x 15.24 cm