Records of Humber Conservancy and the Humber Ports (Records deposited by Associated British Ports and its Predecessors) > Dock Engineering Records > Series 36217 North Eastern Railway: Records regarding the supply of five steel hopper barges Nos. 151–155 (N.E.R. Nos. 9–13) by the Blyth Shipbuilding and Dry Dock Company Limited > File 36217/A [Main Contract: No. 13 N.E.R. Hopper Barge. Door Gear—Nos. 151–155 Hopper Barge Drawings]