Divers continue to unveil ‘little shards of life’ from CSS Georgia
Elevator screw: Parker Brooks, a conservator and graduate student from Texas A&M University’s Conservation Research Laboratory, examines an elevator screw (right) and firing mechanism from a cannon. In the foreground are a sabot (right) and rear gun sight for a 32-pound rifle cannon. The elevator screw was used to change the height of the cannon.

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Photo by: Chelsea Smith |  VIRIN: 150615-A-SM817-015.JPG