Includes:

Specifications for a lump, a camel and two working lighters for lifting wrecks; return of vessels sunk or stranded within the limits of the Humber Conservancy Commissioners 1853 – 1876; reports to the Humber Conservancy Commissioners as to wreck removal apparatus, and to charges and regulations in connection with the use of the lifting chains for the removal of wrecks;estimated cost of apparatus for the removal of wrecks;

correspondence between the Trinity House and the Board of Trade on the subject of the removal and dispersion of sunken wrecks; extract from the Newcastle Daily Journal January 31st 1884 titled ‘The Raising of the Sunken Dredger’; roposed resolution regarding the lifting chains; various correspondence relating to the resolution draft report 1882 to Humber Conservancy Commission as to wreckage removal; invoice from Earles Shipbuilding and Engineering Company for five barges; description of a lifting lighter with centre well; the Glasgow salvage company limited and a list of salvage plant and terms for the hire thereof; draft report to wrecks committee as to pumping apparatus for salvage vessel 1887; numerous certificates certifying chain link cable from Saltney Chain and Anchor Testing Machines; Humber Conservancy list of salvage plants and pumps; Mersey wrecks removal plant hire availability and charges; Thames Conservancy scale of charges for raising wrecks.