1936. Project: ST-70 Scale: 1:1200 Drainage basin: Delaware River Image is from a copy of the original on Mylar. Drawn by E.S. Becker Date July 1936 Appr...
1938. Project: 1782-0 Scale: 1:6000 Drainage Basin: Delaware River Connects to Sheet: 2 Image is from a copy of the original on Mylar. Sept. 1938 Drawn b...
1938. Project: 1782-0 Scale: 1:12000 Drainage Basin: Delaware River Connects to Sheet: 1 Image is from a copy of the original on Mylar. Sept. 1938 Drawn ...