(includes circuit breakers, transmission and power plants)
name: label: Collection Creator
content: American Petroleum Institute.
setName: label: See more items in
content: American Petroleum Institute Photograph and Film Collection
label: See more items in
content: American Petroleum Institute Photograph and Film Collection / Series 4: Slides, 1970s-1980s / 4.2: Slides by Subject
container: label: Container
content: Box 118, Folder 14
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials