2000 S Roosevelt Dime

Completely Flawless Under 40X Magnification. NO human Hands ever touched it!

Notice the difference between my older silver proof coins of the 50's and 60's compared to todays proofs. Older Roosevelt Dime Proof have no mint mark on them. They are P coins. No mint marks between 1950 - 1964 were originally issued in mint sets.
Then there were no proof coins minted in silver again after 1964, until 1992. Although in 1965 they did start making clad proofs. But the first 3 years 1965, 1966, and 1967 were only distributed in mint sets. It was not until 1968 that they started selling them as singles.