I'm not sure how this would happen during the minting process or what this error would be called. The blank I assume was defective prior to the coin being struck. The flaw is marginally evident on the reverse. View attachment 563988 View attachment 563990
I can't see your images, either. Have you tried using the "Upload a File" at the bottom of the page? Chris
Sorry Right after posting I found info on CT of all places. Come to find out the coin is very common so I deleted the post. Or so I thought.