Please! Please! Please! If you insist on using acronyms, you should explain to the (relative) newcomer what it means.
Welcome @Mindy Clement this is called Incused Machine doubling. http://www.error-ref.com/?s=incuse+doubling
Hey Y’all New here and first post. I inherited what I assumed was a coin collection from my father, who passed a month ago, and Ive realized that what he really had was an accumulation instead of a collection. It was ALL stored together in several large socks! Lol. Anyway, I got one for you to look at. Really two side by side for comparison. Don’t know if that’s a die crack on the one one right....and that’s the normal one for comparison. Could it be a dime planchette it’s stamped on?? Both are 3.07 it’s the right size of a dime. But I haven’t measured the diameter. Much respect to everyone who uses this forum. Thank you in advance.
Saw this same coin listed on eBay for 10 grand: https://www.ebay.com/itm/Bat-Corona-Coin/224269158480?hash=item34377bc850:g:KyQAAOSwQF1fjLDX Not my listing. TC