1858-S

The 1858-S Seated Liberty Quarter is a low-mintage San Francisco delivery from the fifth year of branch operation, with 121,000 pieces struck on the 6.22-gram post-1853 standard. The figure sits above the truly tiny S-Mint quarters of 1860 and 1862 and reads as the most "available" San Francisco quarter of the late 1850s, but in absolute terms it remains a small production: less than two percent of the Philadelphia output of the same year. San Francisco silver coinage in this period ran through a facility whose primary work was refining and striking California gold, and the silver quarter line operated as bullion supply allowed rather than on a steady schedule. The issue belongs to the No Arrows, No Motto subtype that ran from 1856 through 1865 and carries no special design marker. What separates it from the Philadelphia coinage of the same date is geography and circulation pressure; West Coast commerce moved these coins hard for years, and original-skin survivors are far rarer than the mintage figure would imply on its own.

Strike follows the familiar San Francisco pattern of the period, with softness concentrated on Liberty's head, the upper shield lines, and the eagle's right (viewer's left) leg feathers. The central reverse loses definition first on later die states, while the obverse stars and date usually render adequately when the dies were fresh. Graders separate this die-related weakness from honest wear by checking whether the surrounding fields retain any cartwheel luster, the rotating sheen of original mint surface that survives only on unworn coins. Authentication centers on the S mintmark below the eagle, which should sit cleanly inside original mint surface and show no tooling halo or color mismatch that would suggest transplantation from a Philadelphia piece to fake branch-mint scarcity. Weight on a genuine planchet falls within tolerance of 6.22 grams; anything materially heavier flags a wrong-standard counterfeit, and modern struck fakes sometimes miss the figure or show mushy claw detail. Briggs catalogs the working die marriages for the year, with mintmark placement and reverse die cracks carrying the attribution weight.

For a date-set builder, the 1858-S is a genuine Semi-Key that surfaces at the major shows in circulated grades through Very Fine at moderate premiums, climbing sharply through Extremely Fine and into About Uncirculated. Mint State examples are condition rare, and a problem-free MS62 commands a multiple of the raw-mintage implication. Professional Coin Grading Service and Numismatic Guaranty Company encapsulation is the standard for any coin above About Uncirculated. For the broader story of Gobrecht's design and the series' Civil War-era production, see the Seated Liberty Quarter series history.