3 inch scale part-built Caradoc tractor

An early stage steam tractor to John Haining's "Caradoc" design comprising a welded steel boiler, complete with material certificates and builder's hydraulic test, wheels, drum brake, differential/axle assembly, a nicely machined cylinder assembly in cast iron, crank axle complete with eccentric rods, straps and sheaves, expansion links, fabricated chassis, front axle and a selection of sprockets and chain.