So, the early style ones from Classic would say GM on one side (as pictured on pg. 149) and then Briggs and Stratton on the other?
Didn't you say earlier in this thread that that is what you got from Classic, GM stamped one side and Briggs and Stratton on the other??
But I'm still unclear if these are ORIGINAL or REPRO?
I could not class them as repro if they do have Briggs and Stratton on one side and the GM trademark on the other side,
For a product to carry a manufacturers name and/or trademark it has to be at the very least done under licence from the owner/s of those names/trademarks, if manufactured by a 3rd party.
They don't qualify as NOS, only keys struck back in 67-68 would qualify as NOS, but they would qualify as reissues, or maybe even genuine reissues if the original B & S dies are being used to mint the heads by a 3rd party.
Definitely would qualify as genuine reissues if B & S are punching them out.