I know the mint intentionally produced this concave/convex commemorative. Just wondering, if there was ever any history of concave/convex coins being produced in error by the mint? It's hard to see by the pictures but this 20-S is definitely convex on the obverse and concave on the reverse. It doesn't lie flat on the obverse side. Both sides seem to be the same consistency around the rim of the coin. It doesn't look like someone took a hammer to it. But it could still somehow be PMD. Your thoughts..
It looks like it is bent very slightly from the first "U" in PLURIBUS to the southeast through the diagonal of the "N" in ONE. Chris
Hey, I've been sitting here waiting for everyone. Thanks for your reply and feedback Chris. I guess everyone is still over talking to Rachael.
There is a single US coin struck by reciprocally deformed, convex-concave dies: http://www.coinworld.com/news/us-co...pact--induced-reciprocal-die-deformation.html However, all other examples that I'm aware of were intentionally deformed outside the Mint. I suspect that's the case with your coin. All genuine examples, domestic and foreign, show other problems, like centralized weakness, semi-circular die cracks, misalignments, etc.
Finally, besides @cpm9ball a serious reply. Thanks for your detailed explanation. Your opinion reinforces my thoughts. Tks!
