answersLogoWhite

0

"SMS" is an abbreviation for "Special Mint Set". The US Mint did not produce any proof sets for collectors in the years 1965, 1966, 1967. Instead they produced what were called "Special Mint Sets". Generally they have better detail and luster than the everyday business strikes made for circulation. Proof set production was resumed in 1968.

User Avatar

Wiki User

16y ago

What else can I help you with?