The OP posted a 1964 D 50c DDO but it is actually a quadruple. So point of this post is how many of you have found such things on the bay? (No moral high ground here) not worth a whole lot but figured I would message the guy and let him know?
I can be pretty ruthless when coins are just hanging out there.
Cannot recall reaching out to a seller to correct a cherrypick. They should know better.
Now an outright missed attribution that decieves and will hurt somebody going the other way? More than once.
Frankly, when I see misattribution, I let it go. Let another cherry picker find it.
Looks like FS-103 to me.
Coneca die #3, doubled die obverse.
As such, in the condition the coin is in, it is overpriced in my opinion.