Canal & River Trust Collection > Images at Leeds and Aire and Calder Navigation > Aire and Calder Navigation. Collection of photographic prints
John Harker Ltd, Shipbuilder at Knottingley, Leeds. Photographs of launch ceremonies and personnel
Photographs of launches at John Harker lrd, Knottingley. Includes wide barges 'Beta',' Gamma',and ' I.W.N.E. No. 1''
John Harker Limited