Part built Horwich Crab chassis - a Don Young design are notable its fidelity to the prototype.
The sale includes  the main running chassis is essentially complete - frames, wheels, cylinders, all rods, pins and valve gear ready for stage of setting on compressed air).
    Don Young drawings.
    Bench-top swivelling erection frame.
    Pony Truck.
    Tender (wholly complete and painted).
    Smoke box wrapper incomplete.
    Cast iron for smokebox ring boiler (unfinished, more work required).
    Boiler lagging material, sheet steel suitable for general platework and cleading.
The unfinished model was undertaken by an experienced Aircraft Maintenance engineer who was unable to complete it.