I will do my best to explain. Two silver proofs of Bahamas 2 dollars, ref km# 66a. One is 1974 and the other 1975. Apart from date, same obverse and reverse. They both have similar problems on the edge/rim although 4 beads difference. They were not stored together and are in their original packaging. Photographs are '74 then '75 for each mark. And sorry but the close ups show the dust on the protective plastic sleeve inside each packet.
I'm thinking some type of post mint damage during the packaging process. It happens......... BTW: This came directly from the mint.
I believe the coin is damaged. In the straight down pic, notice how the rim is slightly out of round. This can't happen since the coin was struck in a collar and it doesn't look like the collar was damaged. It looks like displaced metal. As previously mentioned, the damage probably occurred during packaging
I believe it is PMD. The plastic case is not that hard (or thick) so it is possible for the coin to take a hit. It is just coincidence that you have two coins that were damaged on the edge like that. ~ Chris
