Re: MYSTERIOUS BIKE FRAME HELP? is it a SCHWINN?
Looks like a piece of junk. Totally homemade from two junk frames. No value whatsoever.
Doesn't matter what brand frames they used to be, now they're worth nothing.
Intact, non-tandem vintage schwinn girl's frames are worth $50 or less.
I've seen good condition schwinn tandems sell from $150 and up. If you want a tandem, don't buy this one.
If you want a tandem to flip and make some money off of, don't buy this one. And, don't buy a tandem in the first place, if you're trying to flip it for money.
No one wants tandems. There's a saying in the vintage bike crowd, "the two best things about a tandem are the day you buy it, and the day you sell it."