Diagram of Locomotive Main & Control Circuit, 1937-09-21
name: label: Collection Creator
content: Hamily, David
setName: label: See more items in
content: Division of Transportation: Railroads' Engineering Data
label: See more items in
content: Division of Transportation: Railroads' Engineering Data / Series 6: Pennsylvania Railroad
container: label: Container
content: Box 2, Folder 3
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials