MapFort Thunderbolt. Shows fortification of Savannah, Georgia. Date from Stephenson's Civil War maps, 1989. Pen-and-ink on tracing cloth. LC Civil War maps (2nd ed.), S109, 185 Available also through the Library of Congress Web site as a raster image. At upper right in pencil: 65. Imperfect: Mounted on paper.
- Date: 1864