#69 Retaining wall, Baltimore & Ohio Railroad Company, Pittsburgh, Pennsylvania
name: label: Collection Creator
content: Cummings, Robert A., 1866-1962
setName: label: See more items in
content: Cummings Structural Concrete Company Records
label: See more items in
content: Cummings Structural Concrete Company Records / Series 2: Operational Records / 2.3: Project Contracts
unitdate: label: Date
content: 1911-1912 and undated
container: label: Container
content: Box 10, Folder 14
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials
label: Type
content: Text