DEFINITELY NOT a Schwinn...
It's a 1970 gas pipe department store bike! These were the kinds of bikes that brought about the US CPSC coverage of bicycles in the mid 70's (Consumer Protection Safety Commission).
Bikes like this one sold for under $70 USD. Very few were sold by bike shops. Sometimes that had t be assembled by customers other times it was done by inexperienced store clerks! Most of them have been recycled long ago.
The reason why I'm so negative about this bike is that these were so poorly constructed and used such poor quality components that they verged on being dangerous! We called them "Kid Killers" back then!
There's a Kia patiently waiting for this bike to arrive from the crusher!
verktyg
Chas.