1860-O

The 1860-O Seated Liberty Quarter is the last New Orleans quarter of the antebellum period, with 388,000 pieces struck on the 6.22-gram post-1853 standard. The figure sits between the 520,000 output of 1858-O and the 260,000 of 1859-O, and reads as a moderate New Orleans delivery from a facility that had three months left before secession closed its doors. South Carolina's December 20 ordinance of secession fell within the coining year, and Louisiana followed on January 26, 1861; the New Orleans Mint coined briefly under Louisiana and then Confederate authority into early 1861 before suspending operations, and no 1861-O quarters appear in the catalog. The 1860-O therefore carries the weight of being the closing pre-war New Orleans quarter, the last from a branch that had been a steady contributor to the silver coinage since 1840. The issue belongs to the No Arrows, No Motto subtype, and the O mintmark sits cleanly below the eagle between the talon and the legend.

Strike on the date follows the familiar New Orleans pattern of the period, with softness in the central reverse where the eagle's leg feathers meet the arrow shafts. Liberty's head and the obverse stars normally render with adequate definition when the dies were fresh, while the shield's lower rivets and the eagle's claws lose detail first under die wear. Most survivors are encountered in Very Good through Extremely Fine; problem-free About Uncirculated coins surface with patience, and Mint State examples are scarce relative to the mintage figure. Authentication centers on the O mintmark below the eagle, which should sit inside original mint surface continuous with the surrounding field, with no tooling halo or solder trace pointing to an added-O deception used to fake branch-mint scarcity from a Philadelphia coin. Weight should fall within tolerance of 6.22 grams on a 24.3-millimeter reeded planchet. Briggs catalogs the year's working die marriages, and mintmark placement plus obverse polish lines carry the attribution work.

For a date-set builder, the 1860-O is a moderately available pre-war New Orleans quarter in circulated grades but climbs in difficulty through Extremely Fine and above. Original-skin About Uncirculated coins command clear premiums, and Mint State pieces above MS62 sit firmly in specialist territory. The issue's status as the closing antebellum New Orleans quarter gives it historical weight beyond the mintage alone. For the broader story of Gobrecht's design and the series' Civil War-era production, see the Seated Liberty Quarter series history.