"Plan of A Projected Castle for Charleston Harbor, So. Carolina"
Unsigned, not dated
Ink and watercolor on paper
14 1/2" x 12 5/8"
National Archives and Records Administration, Records of the Office of the Chief of Engineers

Proposed Castle, Charleston Harbor, South Carolina
This beautifully rendered design for an octagonal, two-story "castle" or fortified enclosure was proposed as part of the defenses guarding the harbor at Charleston, South Carolina. The plans for the upper and lower stories indicate the locations of the "embrasures" or flared wall openings through which the guns were to be fired. The upper part of the drawing shows the front and rear facades, and the interior space arrangements can be seen near the bottom. This plan was not approved.