I am not so sure what the difference is when it comes to Schwinns: there is no "Huret" stamp like I have seen on forged Huret DOs with a hanger, these look to my eye to be stamped from thick plate, have no name stamped on 'em and have NO RD hanger.

I should add that I did a cursory look at date codes on components as I was stripping it down and saw a variety of dates from (going from memory) around '73 to '77, but didn't see anything from '79 that got my attention.

I'll look sharp and shoot more pics tomorrow...

Thanks for your interest and contributions!