BW177/8/4/26
Plans of 'Beaver' type dredger
Plans entitled "G.A. of proposed slewing arrangement for digger on 'Beaver' type dredger"; "G.A. of hamster type dredger"; "Layout of steel pipes on main frame of digger on Beaver type dredger"; "35'-0" S.P. dredger [Dinkum]"; "Assy. of spud gear with recessed foot [Dinkum]"; "G.A. of dredger end. Hampster"; "G.A. of stern". By Whitlock Brothers Limited, Great Yeldham, Essex.
February 1959-October 1960
BW177/8/4/26
7 Sheets