1935. Project: S-F2-198 Scale: 1:1200 Connects to sheets: 14, 16 Image is from a copy of the original on Mylar. Drawn by N. A. Houser Nov 1935.
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1935. Project: S-F2-198 Scale: 1:1200 Connects to sheets: 15, 17 Image is from a copy of the original on Mylar. Drawn by N. A. Houser Nov 1935.
1935. Project: S-F2-198 Scale: 1:1200 Connects to sheets: 17, 19 Image is from a copy of the original on Mylar. Drawn by N. A. Houser 6/12/35.
1935. Project: S-F2-198 Scale: 1:1200 Connects to sheets: 18, 20 Image is from a copy of the original on Mylar. Drawn by N. A. Houser 6/18/35.
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 June 1935 ...
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 3-8-3...
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-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...
1935. Project: S-F2-198 Scale: 1:1200 Connects to sheets: 19, 21, 43 Image is from a copy of the original on Mylar. Drawn by N. A. Houser 9/12/35.
1935. Project: S-F2-198 Scale: 1:1200 Connects to sheets: 22, 24 Image is from a copy of the original on Mylar. Drawn by N. A. Houser Nov. 1935.