What do you guys think may have caused this cut on the coins bottom? I am guessing it wasn't caused at the mint, it was caused by someone holding it up against a grinder wheel.
I hope no one minds my input . I'm guessing it's Post Mint damage . Too clean of a cut , looks filed smooth . No Blakesley effect . Thanks
You are correct in your assessment, the burr on the obverse side is a direct indication. An Incomplete planchet will show the cut and shear marks on the part that is missing. It should look similar to this.