Dave, the cruiser NASHVILLE/RATTLESNAKE is shown in two different engravings, one in volume 2 of the DICTIONARY OF AMERICAN NAVAL FIGHTING SHIPS, and the other at the following web site URL: http://www.sonofthesouth.net/leefoundation/civil-war/1862/blockade-runner.htm
However, this cruiser was not the one built in Alabama. That one was the ironclad, CSS NASHVILLE.