Exhaust Valve
name: label: Collection Creator
content: Providence Engineering Works
setName: label: See more items in
content: Providence Engineering Works Records
label: See more items in
content: Providence Engineering Works Records / Series 3: Glass Plate Negatives
physdesc: label: Extent
content: 1 Glass plate negative
unitdate: label: Date
content: undated
container: label: Container
content: Box 9, Item 53
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials
label: Type
content: Negatives
label: Type
content: Glass plate negatives