Records of Humber Conservancy and the Humber Ports (Records deposited by Associated British Ports and its Predecessors) > Commercial Department, Hull: British Transport Docks Board > Photographs of Hull Docks > Photographs [Black and white] of a visit by HRH Princess Mary, the Princess Royal to the fish market, St. Andews Dock, Albert Dock and the Guildhall, Hull > Photograph [Black and white] of a visit by HRH Princess Mary putting on white lab coat [protective clothing] at King George Dock, Hull