A 12x10 negative. A slightly distant port broadside view of the single screw tug Dorunda (1890) at anchor in Gravesend Reach, River Thames. No crew are on deck. Tilbury Fort Watergate is in the background. The original negative has been broken and discarded. A half plate copy negative number P8541 has been made from the 12x10 photographic print produced in the 1950s from the original negative before it was broken.