1864 Charleston Harbor and it's Defenses

Charleston and its defences.Charleston Harbor and city defences Entered according to Act of Congress in the year 1864 by D. N. Dobelmann & G. Huck. "Key to the map of Charleston Harbor and defences" is pasted to the right of the map. "Green represents the Confederates" land [and] pink the Federal possessions" Indicates "torpedoes in the channels," obstructions, bridges, roads and streets, railroads, and rivers. Letters A to K represent fortifications, headquarters, depots, and "place where Clarck of Brooklin was executed." Forts and batteries are numbered 1 to 40. The number of guns and mortars for each is shown opposite the name given in the "Key"