I'm new to the coin error spotting world so please bear with me. But I was going through my pocket change from today and came across this 1964
Jefferson nickel, clearly has been circulated but on the reverse side there's some kind of circular indention or mark right in the center of the Monticello building only. I've compared it next to my other nickels and imo it just doesn't look like a worn mark or whatever...but I'm no professional. So any answers or opinions about it are much appreciated. Sorry for my bad picture taking skills also. TIA


