It's not a Schwinn china either, at least up too 2002 frame . Just checked the three I have of different years and no tomato. Plus more indicative it's likely a maple Island and replica to older is the way rear stays and and drop-outs are welded together or replicated.
Yet what caught my attention 1st in the 2nt frame shown, 1st photo has to much packing material to see, is all is the breather holes that all appear to be drilled and especially, near head post on canti tubes ,never seen that on any bike before. which is another reason I checked, that I hardly ever bother to look over, I mean, I couldn't case less about em, my few pre-2003 Schwinn china frames. . And I seriously doubt Schwinn china has or will ever bother to replicate drop out and stays as it appears, Maple Island did. Those holes in canti bars ought to be tell-tail for other replica schwinns made by them.