1968 was a year of "firsts" for coin collectors. It was the first time Proof Coin Sets were produced at the San Francisco Mint (where they would be produced thereafter). 1968 was the first year that the mintmarks were brought around from the reverse of each coin to the obverse (where they would appear thereafter). 1968 was the first year that Proof Coin Sets were produced since 1964 (from 1965 to 1967, the Mint produced only Special Mint Sets). And, although it was an embarrassment to the Mint, 1968 was also the first year that a few Proof Dimes were struck accidentally without a mintmark!
Mintage:
| San Francisco Proof | Issue Price |
| 3,041,500 | $5.00 |