PMD - Post Mint Damage Non Mint Error The copper on the edge was worn off after it left the US Mint exposing the Zinc underneath.
This isn’t a mint error. It happened after the coin left the mint (probably some guy with sandpaper).
First Amber, Thank you for asking about terminology. In jovial moments, I call cents like that one BU. {wait for it} Beaten Up. Clearly it was intentionally abraded by something. A guy with too many tools and too much time on his hands. My wish is that everybody could have the chance to spend a few minutes at a Fred Weinberg show table and see what REAL errors are.
Thank you Kurt, it is very difficult because there are so many different errors that fall into the same category. I have learn more from the people here on this chat and appreciate their help and patients.
I'm currently web searching for 2 toned coins. Again, hard to get information because I don't know the correct terminology.
If it's something that you can make yourself, it's usually damage. Things like off center, laminations come from the mint that way. True errors are rare, and most coins that look damaged, are damaged. Perhaps try: Bi-metal.
Hey Amber, last August at Denver, the Chinese mint produced a tri-metal piece honoring the ANA. None of the metals were precious - cupronickel, brass, and copper. Three concentric. Cool piece.
