Large corrections July 1864--center below neat line & "Small corrections III-82 ... IX-05"--lower left.; "Sold by J.D. Potter, Agent for the Admiralty Charts, 145 Minories."; Relief shown by hachures, soundings, and spot heights.; Includes 8 cross sections.; North oriented to the upper left. 46 x 61 centimeters, on sheet 49 x 65 centimeters Scale not given. General Map Collection