I believe I have an unopened 4 car set from Williams of the 418/419/431/490. Bought them 20 years ago, possibly a local TCA meet, cannot remember. I lead a very active life and I never had time to really look at them and assemble. I do not know if they were factory painted as issued or unpainted metai. I will have to unload them from a shelf and check them out. My email is boltontownhall at comcast dot net. I owe you a reply.