Rotating cam for M.B. 3.5-1 driving gear, drawing
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 1: Historical Background Materials
unitdate: label: Date
content: 1907-09-20
container: label: Container
content: Map-folder 1
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials