Part-built 1 1/2 inch scale Allchin agricultural engine

An early stage 1 1/2 inch scale Allchin to the "Royal Chester" design, complete with drawings and a copy of the construction manual.

Includes unmachined cylinder casting, formed tender sides in brass, hornplates, set of gears, part-built wheels and jig to build them on (including Myford faceplate), quantity of other parts and castings and a copper boiler.