Diagrams for various shield tunnel linings
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 4: Drawings
unitdate: label: Date
content: undated
container: label: Container
content: Map-folder 22
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials