Various drawings and blueprints of component parts of dredger Viscount Ridley. Blyth, Northumberland

lower sheave shaft [3 copies] [114.66]; cushion carriage for top rollers [114.68]; hard forged steel outside lip plate for buckets [3 copies] [no number]; lower sheath shaft [no number]; plan of original bucket [no number]. All bearing Blyth Harbour Resident Engineers office stamp.