United States Proof Set
[2] Therefore, later 1936 cents and nickels featured the mirror-like "brilliant" finish used on the other coins of the set.
Halfway through 1942, following the outbreak of World War II, the composition of the nickel temporarily changed from cupronickel to 35% silver.
Later that year proof coinage was discontinued as the Mint was busy striking millions of medals for military awards.
1964 was the final year that the Philadelphia Mint produced proof sets.
Since 1975, San Francisco has only struck coins for collectors and investors, with the proof set being its main product (one major exception is the Susan B. Anthony dollar, produced 1979–1981).
[9] The 1982 proof set contained a Department of the Treasury token in place of the dollar.
As of 2019[update], however, the Sacagawea dollar continues to be available in the proof set (the Presidential $1 coin program ended in 2016).
The 2009 proof set contained the highest number of coins and the highest combined face value ($7.19) of any proof set as of 2019, containing the four Lincoln Bicentennial cents (with a special composition of 95% copper), all six District of Columbia and United States Territories quarters, five dollar coins, and the standard nickel, dime, and half dollar.
Delaware S Pennsylvania S New Jersey S Georgia S Connecticut S Maryland S South Carolina S New Hampshire S Virginia S
[22] The 2019 Silver Proof Set contains a "West Point" penny with a reverse cameo finish.
[23] Similarly, the 2020 set includes a reverse cameo "West Point" nickel.
Delaware S Pennsylvania S New Jersey S Georgia S Connecticut S Maryland S South Carolina S New Hampshire S Virginia S
[27] The 50 State Quarters Proof Sets produced with the five quarters produced that year in 90% silver and again were the same as the year's Silver Proof Set but in a reduced red packaging and unique certificate of authenticity.
[27] Upon completion of the 50 State Quarters Program, it was decided to honor Washington D.C., and the U.S. Overseas Territories in a similar manner.
The District of Columbia and United States Territories Quarters allowed for the minting of six designs in 2009 and these were sold as a set.
The 50 State Quarters Proof Sets are also produced in 90% silver and again are the same as the year's Silver Proof Set but in a reduced navy-blue packaging and unique certificate of authenticity.
[28] A special Silver Proof Set was issued by the San Francisco Mint in 2018.
