Diagram for drill holes
name: label: Collection Creator
content: Niagara Falls International Bridge Company and Niagara Falls Suspension Bridge Company
setName: label: See more items in
content: Niagara Falls Bridge Commission Records
label: See more items in
content: Niagara Falls Bridge Commission Records / Series 2: Bridge Construction and Maintenance / 2.4: Miscellaneous Drawings
physdesc: label: Extent
content: 1 Drawings (visual works) (18 in x 35 in )
unitdate: label: Date
content: undated
container: label: Container
content: Map-folder 2
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials
label: Type
content: Drawings (visual works)