Question for my peers. I picked up a nice PCGS MS65+ Morgan. Looking in my
Coin World app, they have listings for MS63, MS63 D, MS64, MS64 D, MS65,& MS65 D. What is the significance of the D? I'm convinced it pertains to the grade and in no way related to the mint location. But what do I know? I'm jsut an ole' chunck a coal. (but I'm gonna be a diamond some day)
See example below.

Thanks in advance.
John