Captain H.R. Cooper collection of photographs of dredgers, mechanical handling plants, etc.

Two boxes containing 513 photographs (colour and black and white) of dredgers, mechanical handling plants, etc. from various locations around the world. Also a number of clippings from books and magazines, a three-ring binder titled "Syncrolift Drydocks and Transfer Systems: A patented product of Pearlson Engineering Company, Inc", and a paper folder containing a report titled "Study of dredge 'Gahagan' clay cutters'".