This is the 1981 Modern Proof Set from the San Francisco Mint. It includes the following coins:
-Kennedy Half Dollar
-Susan B. Anthony Dollar
Proof coins are made from highly polished dies. They are hand fed into a coinage press one at a time, with each blank receiving two or more strikes from the dies to bring up sharp high-relief details.
This Modern Proof Set is in its Original Government Packaging (OGP)