Map of the Potomac & Anacostia rivers between Washington D.C. & Alexandria Va

Relief shown by hachures. Depths shown by soundings.
"Copied from the tracining [sic] of original and sent to Com'd'r J.A. Dahlgren U.S.N., M.S. Smith, Cap't of Top'l Eng'rs Asst. C.S. in charge of Office, Coast Survey Office, Washington, February 17th 1857."
Blue-line print of ms. map.
Includes note.
"P.W. 1832. Antique."
LC copy accompanied by typewritten text of note by "RS 5/9/77."
Available also through the Library of Congress Web site as a raster image.
DCP