Foreign - Tunnels
name: label: Collection Creator
content: Vogel, Robert M.
setName: label: See more items in
content: Mechanical and Civil Engineering Stereograph Cards
label: See more items in
content: Mechanical and Civil Engineering Stereograph Cards / Series 1: Stereograph Cards
unitdate: label: Date
content: undated
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
identifier: label: Identifier
content: NMAH.AC.1090, Subseries 1.53
objectType: label: Type
content: Archival materials