I inherited some Eisenhower Dollars that aren't matching any listings. Is there anyone who can help me out? They have all passed all of the tests, so I am certain that they are silver. I was given them by my grandfather, who was given them by his aunt. Neither of them were coin collectors, and they had just kept them in a drawer for the silver (Kept in a plastic bag and everything, they really didn't care about the coins themselves.). One of them is the 1977D variation, so I am wondering if the others are a rare variation too?
1. I have three of these that match this design (KM# 206a), but all three very clearly have a D mintmark.
https://en.numista.com/catalogue/pieces15203.html
2. I have four that match this design (KM# 203a), but all four also have a very clear D mintmark.
https://en.numista.com/catalogue/pieces15202.html
If anyone has any ideas, I would really appreciate it!!