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 HRH Princess Mary, the Princess Royal on a visit to Albert Dock and the Riverside Quay, Hull > Photograph [Black and white] of HRH Princess Mary, the Princess Royal and local dignitaries entering a building, Albert Dock, Hull