Found These in my attic.
My dad says they're 20+ years old which means they're from the late 70's early 80's for those too lazy to do the math.
They seem VERY authentic. Not 100% sure.
The phrase "R&L Ray-Ban U.S.A." is engraved twice on the metal frame and once with the serial number.
The lenses are a bit scratched, but does not affect the visibility through them. 7/10 condition.
Frames are in GREAT shape for their age. 8/10
The picture isn't great, but that ^ is the one of the two engravings of "R&L Ray-Ban U.S.A."
Make some offers and if I feel I get a reasonable and legit one I'll sell 'em.