Like the proof sets of the same years, 1968-1970 Mint Sets marked a return to production for the United States Mint. From 1965-1967, the U.S. Mint released Special Mint Sets in lieu of proof or standard mint sets.
The re-appearance of the Mint Sets in 1968 also marked a few other firsts for the U.S. Mint. One of those is the fact that the mintmark locations changed to the obverse of the coins for the nickel, dime, quarter and half dollar. Previous to this, these coins had mintmarks located on their reverse. The Lincoln Cent had always featured an obverse mintmark (with the exception of Philadelphia facility struck coins which contain no mintmark).
Historical 1968-1970 Mint Silver Set Melt Values
Additionally, 1968 saw the U.S. Mint producing circulating coinage at its San Francisco facility. Accordingly, samples of those strikes were included in the sets. During those same years, circulating nickels were not struck in Philadelphia and are thus absent from the sets.
Coins Included in the 1968-1970 Mint Sets
- Three Lincoln Cents (one Philadelphia, one Denver, one San Francisco)
- Two Jefferson Nickels (one Denver, one San Francisco)
- Two Roosevelt Dimes (one Philadelphia, one Denver)
- Two Washington Quarters (one Philadelphia, one Denver)
- One Kennedy Half Dollars (Denver) *struck from 40% silver
The only silver coin included in these sets was the Kennedy Half Dollar with a total silver weight of 0.14790 ounces.