I have a set of cards BUT. I don't have the master catalog for them.
I think the collection covers 50s through 70s domestic. Cards have brief descriptions on them for YMM. often no engine or which pipe it is.
I think I'm going to pack them in the camper and spend a long weekend drinking beer and organizing the cards.
Same here,
mine go from 20,000 series up to 60,000.
They seem to reference off of a "gorelig" number? (spelling may not be correct). Mine reference other Mfr's part Numbers like walker, marmont etc on the cards. but the master catalog appears to be the key to finding the correct card
