Rudder composed of wrought iron, discovered on the exterior of the submarine beneath the stern end with a large portion portside. Images show excavated rudder with concretion of coral growth and sea urchin spicules, rudder following partial deconcretion, deconcreted rudder treated in caustic solution, and fully deconcreted and cleaned rudder.
Open ended wrought iron pipe wrench. Images show heavily concreted wrench in its initial location on top of ballast block, and wrench after cleaning, deconcretion and conservation treatment with subcritical fluid technology. Second image shows the extremely fragile condition of the wrench following conservation.
Folding or straight razor knife, covers made of horn and all other components made of iron, with mineralized blade. Images show knife within heavy concretion and knife following deconcretion and conservation treatment.
Folding pocket knife, made of antler covers, German silver bolsters, and iron blades completely mineralized. Images show the pocket knife following removal from the submarine interior and the knife following cleaning and conservation treatment.
Leather wallet belonging to one of the crew, made of two sides that fold in, once stitched together, and an additional pocket inside, with a reinforced band of leather for closing. Images show the wallet during the excavation of the submarine interior and the wallet following cleaning, conservation treatment, and freeze drying.
Small wood match stick, about the size of a thick match. Images show the match stick in its original location within the submarine near a ballast block and the match stick following cleaning and freeze drying treatment.
Wooden tooth pick, discovered in three pieces. Images show tooth pick in original location with surrounding sediment during excavation, tooth pick pieces following removal from submarine interior and initial cleaning, tooth pick pieces following mechanical cleaning and freeze drying treatment, and conserved tooth pick pieces reconstructed.
Wooden pipe stem and bowl, broken in two pieces, belonging to one of the crew. Images show the pipe in its original location within the submarine interior, and pipe following cleaning, conservation treatment, and freeze drying.
