BW177/8/4/18
"Narrow hopper boats. General arr[ange]m[en]t lines and stability curves"
Profile, section, plan, on, deck, and details. Endorsed "mud hopper". By Harland and Wolff Limited, Ship Repairing and Engineering Works, North Woolwich, London.
28 March [19]61
BW177/8/4/18
1 Sheet