The 1861 Seated Liberty quarter has a mintage of close to 5 million pieces, as it preceded the suspension of specie payments. Philadelphia production declined annually thereafter until 1866, when a scant emission of 16,800 pieces was achieved.
As in 1863, the Philadelphia Mint struck only enough dimes to pay off bullion depositors in coin and to meet miscellaneous expenses. There is only a modest spread in value from low grades to Mint State, as few of these coins circulated. Most survivors are Mint State or close to it.
Two die pairs were used for 1864(P). Oddly enough, each pair coined both proofs and currency pieces. Many of the latter are somewhat prooflike or satiny. The example illustrated reveals strong die clashing, especially on its reverse.
The 1865 proof quarter dollar comes from a reported mintage of 500 pieces. As expected, the vast majority of these (about 280 coins) are non-Cameos.
The 1865 half dollar started out with a mintage of 511,400 business strikes. Relatively few pieces are extant. Some of these are 'hoard' coins, as alluded to by Randy Wiley and Bill Bugert in their Complete Guide to Liberty Seated Half Dollars: 'A hoard of 15 pieces was released about 8 months prior to the 1980 ANA sale. Another hoard of approximately 20 Uncirculated coins of this date was supposedly released by a dealer just prior to the 1987 ANA.'