Part set Clarkson beam engine castings

The majority of unmachined Clarkson castings for the handsome 1846 Sanderson 12hp beam engine in one inch scale, complete with a set of three sheets of drawings - one, it must be said, in pretty moth-eaten condition.

Flywheel 9 3/4 inch diameter
Bore 7/8 inch
Stroke 2 1/2 inch