Contract Plan, Washington Pike, Green Tree Borough, Allegheny Country Department of Public Works, 1929

Contract Plan, Washington Pike, Green Tree Borough, Allegheny Country Department of Public Works, 1929, Container: Case: D, Drawer: 12, Folder: 1, Item: 4. City Planning Department Map Collection, 1909-1997, RG-04-004. City of Pittsburgh Archives. https://pittsburghcityarchives.libraryhost.com/repositories/2/archival_objects/32094 Accessed October 27, 2025.