Hello!
I am new to the
Coin World and am having trouble with some of the newer coins. I have a Dansco Kennedy album which has a space for a 1976S proof, a 1976S BU 40%, and 1 1976S proof 40%. My question: Are all BU 40%? How can I tell the difference between proof and 40% proof? Unless this is specified in an add this is confusing for me. Thanks!!