This is 4mm scale version of the Atkinson-Walker Class A3 steam tractor, first ordered by the Clogher Valley Railway it was later converted to diesel power by the County Donegal Railway. Printed in Frosted Ultra-Detail and designed to run on a Halling motor bogie. It is printed in one piece, to be separated in the building process into roof, body / footplate and detail parts; these include work lamps and basic couplings. Additional details can also be added to the model like handrails, coal and glazing. There is a boiler and funnel printed within the cab and further details could be added to enhance the cabs interior.
If you wish to see how the model was built you can see this on the Model Engine Works blog at: