Does anybody else see a S in the middle of the D on the mint mark of this 1964 nickel, I believe I do see the top half of the S but is it my mind and eyes playing games on me so I’d like to know what y’all thought?
I'm no expert, but I don't think an OMM like that is even possible. The San Fransisco Mintmark wasn't used on nickels from 1954-1967.
Keep in mind for an Over Mint Mark to occur, another mint must be in possession of another mint's dies and doing the maintenance for them. This of course has happened, but it was more the exception than the rule.
Danny, you should really learn a little about coins, it'll save you a lot of grief. You're seeing things on this one. San Francisco didn't mint nickels in 1964, so there were no S mint marks, then.
Using a scope will make you see all kinds of things that aren't there or otherwise are big nothing burgers. Our minds play tricks on us and magnification is happy to oblige.
Especially a low price , low resolution microscopes. There is even a medical name for it -pareidolia- It is very common among newer coin collectors and if you google the term, you will see some examples. Many of video microscopes try to make a smooth photo so it adds or removes some pixels to make straight or curved features that are really not there