Collectible coins encompass various types, including proofs, uncirculated coins, and special mint sets. The Special Mint Sets (SMS) from the United States, particularly the 1967 edition, were produced at the San Francisco Mint and are notable for their unique finishes and packaging. These sets typically include one of each denomination from the penny (1c) to the half dollar (50c), featuring enhanced designs and qualities that distinguish them from regular circulation coins. Collectors often seek out these sets for their historical significance and artistic value, as well as their relatively low mintage compared to standard coins.

Item Denomination Series Year Mint
1967 1c- 50c Special Mint Set 1c- 50c Special Mint Sets 1967 San Francisco