1935. Project: S-12-198 Scale: 1:1200 Drainage basin: Delaware River Image is from a copy of the original on Mylar. Drawn by E.S. Becker Drawn date April...
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1936. Project: S-F2-198 Scale: Horizontal 1:1200, Vertical 1:48 Drainage Basin: Delaware River Image is from a copy of the original on Mylar. Drawn by H....
1936. Project: S-F2-198 Scale: 1:1200 Drainage basin: Delaware River Image is from a copy of the original on Mylar. Drawn by E.S. Becker 10-30-36 All bea...
1935. Project: S-F2-198 Scale: Horizontal 1:1200, Vertical 1:48 Drainage Basin: Delaware River Image is from a copy of the original on Mylar. Drawn by H....
1935. Project: S-F2-198 Scale: 1:1200 Drainage basin: Delaware River Image is from a copy of the original on Mylar. Drawn by E.S. Becker Drawn date 5-21-...
1936. Project: S-F2-198 Scale: Horizontal 1:1200, Vertical 1:48 Drainage Basin: Delaware River Image is from a copy of the original on Mylar. Drawn by H....
1936. Project: S-F2-198 Scale: 1:1200 Drainage basin: Delaware River Image is from a copy of the original on Mylar. Drawn by E.S. Becker Drawn date Aug 1...
1936. Project: S-F2-198 Scale: Horizontal 1:1200, Vertical 1:48 Drainage Basin: Delaware River Image is from a copy of the original on Mylar. Drawn by H....
1936. Project: S-F2-198 Scale: 1:1200 Drainage basin: Delaware River Image is from a copy of the original on Mylar. Drawn by E.S. Becker Drawn date 6-13-...
1936. Project: S-F2-198 Scale: 1:48 Drainage Basin: Delaware River Image is from a copy of the original on Mylar. Drawn by H.J.W Drawn date Aug 1935 Chec...