BW120/13/4/6
"No 786 Sharpness Docks Upper Ship Lock Gates"
Annotated plans, sections and elevations. "Layout of Gates" stamp dated 22 June 1940. "Plan of Structure" stamp dated 18 July 1940. Both stamped "Naval Construction Works Barrow-in-Furness Vickers-Armstrong Ltd Shipyard Dept."
June-July 1940
BW120/13/4/6
2 sheets