NGC has certified genuine a quarter produced at the mint bearing two reverses. This according to a recent article in "COIN WORLD"
Hum, cool. But they do know the date so there must be some sort of proof of exactly what happened here. I wonder what that proof is and what circumstances caused this to exist
Don"t know... Don"understand. I (WE) have always been told this was impossible. In2001 PCGS also certified a clad Roosie with two reverses. For more info, search "Genuine quarter with two reverses" in Google or some other search engine
They say that because it's a clad quarter so it has to be between 1965 and 1998. It's my understanding that the dies, which are circular, have flats ground into the sides so that they will only physically fit in the press in the proper orientation, i.e., the obverse die will not fit into the reverse part of the press.
There were three of these that turned up in an abandoned San Francisco Safety deposit box several years ago (Along with a LOT of other errors). They date from sometime in the late 60's early 70's (date determined by die characteristics) which was a period when a lot of hanky panky was going on and fabricated errors were coming out of the San Francisco Mint. The box was probably from a former S mint employee. And yes the dies were set so that they could not be ACCIDENTLY put into the press with two obv or two reverses, but these safeties COULD be deliberately defeated simply by grinding new flats in a different place.