1965 US Mint Set "Special"
A Special Mint Set, often called an SMS, is a set of coins issued by the U.S. Mint from 1965 to 1967. These coins are characterized by a better than average strike, since they were struck on higher-tonnage coin presses than circulation-quality coins, but they were not struck as Proofs. SMS coins do not have any Mint marks.
Special Mint Sets consist of one coin of each circulating type in the year it was issued: Cent, Nickel, Dime, Quarter-Dollar, and Half-Dollar.
Item # 3-0577