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.
Exterior hull plate, hemispherical (semi-circular), made of wrought iron with glass view ports. View ports include hinged cast iron deadlight cover with wrought iron pin lock on the interior of the hull to prevent light from appearing outside the submarine during night drills. Images show plate and view ports following submarine excavation and hull plate removal, x-ray photograph of view ports prior to deconcretion, view ports following deconcretion (removal of sediment concretion), and full deconcretion of hull plate and view ports, including the removal of glass and hinged deadlight covers.
D-ring shackle made of iron, used to support the spar boom as part of the spar torpedo system, uncovered from suction pile excavation area about 2.3 m forward and to starboard of bow. Images show shackle following excavation with thick and compact shell and sediment concretion, x-ray photograph of shackle, and shackle following deconcretion, conservation treatment with caustic solution, and cleaning.
Large plank of wood, possibly pine, with an associated detached smaller plank, found in the submarine bow interior. Possibly cut from the same wood as the crew bench, the two pieces were nailed together at some point to construct and hold in place against an iron pipe the main seat for Lieutenant George E. Dixon. Images show wood bench in its initial location within the submarine interior, wood bench with detached support prior to deconcretion and cleaning, and deconcreted and reconstructed wood pieces following conservation treatment with polyethylene glycol.
Cast iron hatch cover from aft conning tower with a small viewport, bleeding valve and part of the locking mechanism. Images show the concreted hatch cover as excavated and still attached to conning tower, hatch cover during removal via crane, conning tower following hatch cover removal, and partially deconcreted hatch cover with rubber seal still attached.
Oil can (oiler) containing oil, composed of brass, discovered partly fused to the forward bulkhead and concreted. Images show the oil can under heavy concretion and the oil can following deconcretion, conservation treatment with caustic solution, and cleaning.
Wooden tool handle, possibly for an awl or file, egg shaped on one end to fit the hand and tapered down on the other. Images show the original location of the handle within the submarine interior with the tapered end lodged between a ballast block and the aft bulkhead, the handle after cleaning and conservation treatment with polyethylene glycol, and handle after freeze drying.
Bull's eye lantern, made of iron, with convex glass lens. Images show concreted lantern during excavation of the submarine interior, x-ray photograph of the lantern, and lantern following and extensive cleaning and conservation treatment.
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Hunley Artifact Collection – Submarine Components and Tools✖[remove]18
