1875-S Liberty Seated Half Dollar. WB-10. Rarity-3. Very Small S. MS-63 (PCGS). The first of the high mintage San Francisco Mint issues in the Liberty Seated half dollar series, the 1875-S is a perennial favorite among mintmarked type collectors. A generous delivery of 3,200,000 pieces was achieved for this issue pursuant to the Specie Payment Resumption Act of January 14, 1875, which ushered in a brief period of heightened half dollar production that lasted into 1878. By the terms of this Act the federal government sought to remove the paper currency that had become prevalent in circulation during and after the Civil War and replace it with "hard money." From the Abigail Collection, Part II.