Hey all, I was going through my coins and noticed that this 1973 Lincoln Cent's ear looked a little strange (oddly undetailed). However, I quickly noticed that behind the ear there seems to be a print error of some sort, potentially. It appears to be another ear or at least a mark that looks like one. Is this an error, or something else. (Also I'm very new to this site so sorry if the image isn't so great. I have other ones so I can always send better ones through email or something like that!) thanks for all your help!