Encyclopedia Britannica Yearbook, tunneling developments
name: label: Collection Creator
content: Forgie, James
setName: label: See more items in
content: James Forgie Papers
label: See more items in
content: James Forgie Papers / Series 3: Publications
unitdate: label: Date
content: 1941
container: label: Container
content: Box 77, Folder 4
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials