318949.0270, Cyclegraph of light writing. Gridded table and gridded background. Two motion clocks and a camera visible.
odd: label: General note
content: Card Number: 237
label: General note
content: Category: Cyclegraph study
label: General note
content: Copy negative: 83-2442
name: label: Collection Creator
content: Perkins, James Secor
label: Collection Creator
content: Gilbreth, Frank Bunker, 1868-1924
label: Collection Creator
content: Gilbreth, Lillian Moller, 1878-1972
setName: label: See more items in
content: Frank and Lillian Gilbreth Collection
label: See more items in
content: Frank and Lillian Gilbreth Collection / Series 2: Glass Stereo Slides (Positive) / 2.2: 318949.0181 to 318949.0380
unitdate: label: Date
content: undated
container: label: Container
content: Box 4
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials
label: Type
content: Negatives