1858-O

The 1858-O Seated Liberty half dollar is the high-water mark of New Orleans branch production in the entire series, delivered at 7,294,000 pieces, a single-year output no other Seated half dollar issue from any mint has matched. The figure sits inside the Type 4 No Motto run that began in 1856 and ran through 1866, capturing the late-1850s peak of Gulf Coast silver coinage. Cotton exports through the port had recovered quickly from the Panic of 1857, federal bullion deposits at New Orleans climbed back to pre-panic levels, and the branch's press capacity was the limiting factor through the calendar year. Set beside the 818,000-piece 1857-O and the 2.83-million 1859-O, this delivery stands alone.

Strike follows the familiar New Orleans Type 4 pattern: respectable obverse definition with central reverse softness. Liberty's head and the shield's vertical lines usually render with adequate detail, while the eagle's leg feathers and upper claw grip lose definition first under die wear. Grade distribution is heavily weighted toward circulated examples, Very Good through Extremely Fine dominate population reports, problem-free About Uncirculated coins surface with patience, and Mint State pieces appear with enough regularity through MS62 to keep the date affordable. Above MS63 the issue tightens, and fully struck gems with original luster sit in genuine condition-rarity territory. Authentication begins with subtype confirmation: a plain 1858 date without arrows, an O mintmark below the eagle above HALF DOL., and no motto across the upper reverse. Weight should sit at 12.44 grams on the post-1853 planchet, and the mintmark should occupy original mint surface, any tooling halo points to an added-O alteration. Wiley-Bugert documents a substantial run of die marriages, with mintmark size and placement the most useful attribution diagnostic.

For collectors, this is one of the most accessible entry points into a No Motto date set and the standard type-coin choice for a New Orleans Seated half. Circulated examples through Very Fine surface at modest prices, Extremely Fine and About Uncirculated coins reward selective shopping with sharper feather detail, and low Mint State pieces remain attainable without specialist budgets. For the full design evolution from No Drapery through the Motto era, see the Seated Liberty Half Dollar series history.