Spar boom support shackle

Title:
Spar boom support shackle
Date:
1860, 1869
Description:
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.
Collection:
Hunley Artifact Collection – Submarine Components and Tools
Contributing Institution:
Friends of the Hunley
Media Type:
Objects
Personal or Corporate Subject:
H.L. Hunley (Submarine)
Topical Subject:
Iron--Conservation and restoration
Shelving Locator:
HL-526
S.C. County:
Charleston County (S.C.)
Internet Media Type:
image/jpeg
Digitization Specifications:
1350 dpi, 24-bit depth, Nikon; 96 dpi, 24-bit depth; 180 dpi, 24-bit depth, Canon PowerShot G12
Copyright Status Statement:
Digital image copyright 2013, Friends of the Hunley. All rights reserved. For more information, contact Friends of the Hunley at 843.743.4865.