5 Inch Ajax parts
This looks to me like parts to refurbish an old chassis as the cylinders seem to be complete with pistons and valves. the boiler kit would a los seem to be complete and there are older looking wheels and new main horns castings so all in all a good chance of making a working chassis and completed boiler. Lots of other parts are there too like smoke box,chimney etc. Really good step forward on this nice 5" loco.