Yeah it could be 65 66 If it's not a Pcgs grade Kennedy's half dollars there hard plus toning Nice one for sure
MS66! Very nice, had to guess by the reverse cause the obv kept throwing me off with the toning and all.
By "machine damage" I'm assuming they are referring to something like counting wheel damage. This is often displayed as very fine hairlines, and can be quite difficult to see (even in hand). They will only show up at certain angles. Trying to capture them in a photograph will be nearly impossible. PCGS certainly makes mistakes (everyone does, and they are human) - but I'm going to trust their in-hand evaluation over these pictures. A lot can hide in a picture....