Records of Humber Conservancy and the Humber Ports (Records deposited by Associated British Ports and its Predecessors) > Aire and Calder Navigation: Records of the Port of Goole > Goole Steam Shipping Company: Papers accumulated by William Hammond Bartholomew > Goole Steam Shipping Company's Fleet: Valuation for sale to the Lancashire and Yorkshire Railway > Goole Steam Shipping Company's Fleet: Principles of valuation