Speedy Tunneling in Construction Methods
name: label: Collection Author
content: Olds, Robert F., 1881- (civil engineer)
setName: label: See more items in
content: Robert F. Olds Collection
label: See more items in
content: Robert F. Olds Collection / Series 6: Journal Articles
unitdate: label: Date
content: 9/1940
container: label: Container
content: Box 3, Folder 45
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials