I'm willing to bet that every year, there are paper notes with extremely valuable errors that go unnoticed and are eventually destroyed by the Federal Reserve Bank. When's the last time you checked to make sure that the serial numbers matched on your paper money. Many of the examples that are discovered are heavily circulated. Just because no one has reported a 1965 D dime yet, doesn't mean they are not out there. The error is very plausible and I would advise OP to treat that coin like it's priceless until numerous people have confirmed (or denied) it's genuine. I would immediately get an direct fit airtite capsule so that people can handle the coin while inspecting it without adding further wear and tear. One can be had at a coin shop for around a buck. If no local coin shops have one, it's worth the money to order it from jpscorner.com Good Luck OP
gatzdon, I always check the serial numbers of every note I get to make sure that they match and to this date I have found none. Lou
It's unlikely to be genuine so not worth the cost of sending in. Unless the OP comes back and says otherwise, I'd guess it's the reverse of a silver dime inserted into the back of a 1965 dime.
Hello all.... Wrong planchet errors pop up in all kinds of weird ways. Can't recall who, but last year a coin talk member found a wheatie struck on a silver dime planchet.....and it was verified as genuine. (NOTE: This is different than an "11 cent" error)