Chesapeake Bay from its head to Potomac River, nautical chart

Scale 1:80,000.
LC Civil War Maps (2nd ed.), 33.5
From its Report of the Superintendent of the Coast Survey, showing the progress of the survey during the year 1864 (Washington, Government Printing Office, 1866). Maps 17-19.
At head of title: Coast charts nos. 31, 32, 33.
Overall title cited above appears on coast chart no. 32 (map 18).
Available also through the Library of Congress web site as raster image.
No. 32. From Magothy River to Choptank River. Triangulation by J. Ferguson, F. H. Gerdes, J. E. Johnstone, Capt. Topl. Engrs., E. Blunt, J. E. Hilgard, Assts. and A. D. Bache, Supdt. Topography by H. L. Whiting, F. H. Gerdes, Assts., J. C. Neilson, Sub-Asst., J. J. S. Hassler, R. D. Cutts & G. D. Wise, Assts. Hydrography by the parties under the command of Lieut Comdg. G. M. Bache, S. P. Lee & W. P. McArthur, U.S.N. Assts. Published in 1862. ("No. 18" in upper left corner).
Coast chart no. 33. Chesapeake Bay from Choptank River to Potamac River . . . Triangulation by E. Blunt, J. E. Hilgard, J. S. Williams and R. D. Cutts, Assistants. Topography by J. J. S. Hassler, G. D. Wise, R. D. Cutts, Assts. J. Seib & S. A. Wainwright, Sub-Assts. & H. L. Whiting, Asst. Hydrography by the parties under the command of Lieuts Comdg. W. P. McArthur, S. P. Lee and J. J. Almy, U.S.N. Assistants. Published in 1862 ("No. 19" in upper left corner).
Description derived from published bibliography.