Confederacy 's CSS Georgia was scuttled off the Savannah coast in 1864 . Ship is being excavated as part of plans to renovate the city 's harbor . First artifacts include leg irons for prisoners and cannon equipment . zero cannons , artillery shells and engines to be recovered in the summer . Divers face Four-visibility conditions and are 'doing archaeology by braille '
Confederacy 's CSS Georgia was scuttled off the Savannah coast in 1864 . Ship is being excavated as part of plans to renovate the city 's harbor . First artifacts include leg irons for prisoners and cannon equipment . Four cannons , artillery shells and engines to be recovered in the summer . Divers face zero-visibility conditions and are 'doing archaeology by braille '