1860-S

The 1860-S Seated Liberty half dollar is the sixth issue from the San Francisco branch and a delivery that came down slightly from the prior year, with 472,000 pieces struck against the 566,000 produced in 1859. San Francisco was still a young mint in its sixth year of operation, and silver remained a secondary line behind the gold coinage that occupied most of its press time. The 1860-S left the dies in a coining year defined by tightening federal politics: Lincoln's November election, the seating of new pressure on bullion deliveries, and the first signs of the secession crisis that would close the New Orleans facility within months. These coins entered Pacific coast commerce while specie still moved freely on the West Coast, then circulated hard through the wartime years that followed, when eastern hoarding stripped silver from daily trade.

Strike on the 1860-S follows the established San Francisco pattern of softness on Liberty's head, the upper shield lines, and the central reverse where the eagle's leg feathers meet the arrow shafts. Graders separate this die-related weakness from honest wear by checking whether surrounding fields retain any cartwheel luster, the rotating sheen of original mint surface; a coin with weak central detail but intact field surface is normal for the issue and grades on its preserved areas. Authentication centers on the "S" mintmark below the eagle, above HALF DOL., which should sit cleanly within original mint surface and show no tooling halo or mismatched color suggesting transplantation from a Philadelphia coin to fake branch-mint scarcity. Weight should fall within tolerance of the 12.44-gram standard for the No Motto Type 4 design, on a 30.6-millimeter reeded planchet. Wiley-Bugert, the standard die-marriage reference for the series, catalogs the year's working die pairings; legitimate reverse die cracks, mintmark placement, and obverse polish lines should match a documented marriage rather than appearing as an orphan combination.

For context on subtype boundaries, branch mint output, and the path into the Civil War coinage years, see the Seated Liberty Half Dollar series history.