A largely complete Ruston Proctor SD 3 ton tractor to the John Haining design in 2 inch scale, this engine has been built over the last ten years by a gentleman now moving into boats. It runs on air - indeed he's run it around his garden on a long air hose. Work required to complete is mainly plumbing, water pump and gear guards. Boiler is copper, silver soldered.
Complete with copies of the original construction articles.
Length 24 inches
Height 17 inches