1855-O

The 1855-O Liberty Head Half Eagle is one of the great rarities of the New Orleans branch mint, with just 11,100 pieces struck for circulation. That figure ranks among the lowest production totals ever recorded for a New Orleans half eagle, placing this date in the same elite company as the 1842-O Small Date and 1847-O issues that define the top tier of the series. The 1850s were a transitional period for the facility, which shifted more of its capacity toward gold dollars and double eagles to handle the surge of California metal flowing through the port. Half eagles received minimal allocation that year, and the small mintage was distributed into Mississippi Valley commerce, where circulation wear, melting after the 1933 gold recall, and shipment overseas thinned the survival pool dramatically.

Authentic examples weigh exactly 8.359 grams on a 21.6 millimeter planchet of 0.900 fine gold with a reeded edge. The reverse mintmark sits above the denomination, and genuine pieces typically display the soft central strike characteristic of New Orleans dies, particularly on the eagle's neck feathers and the high points of Liberty's hair curls. Collectors must distinguish this native softness from genuine wear, since a weakly struck Very Fine coin can appear lower grade than it actually is. Given the date's extraordinary rarity and strong market demand, the 1855-O is a prime target for added-mintmark fakes built from common Philadelphia 1855 host coins. Authenticators check the O punch shape, depth, and exact placement against verified die markers, and any uncertified specimen should be considered suspect until proven otherwise.

Modern population data from PCGS and NGC suggests fewer than 70 examples survive across all grades, with the vast majority falling between Very Fine and Extremely Fine. Mint State pieces are essentially uncollectible, with only a small handful certified at any uncirculated grade. Recent Heritage auction results have shown EF40 examples bringing roughly $9,000 to $14,000, with AU coins reaching well into the $20,000 to $40,000 range when they appear. The 1855-O routinely sits in the top three or four positions on Doug Winter's New Orleans half eagle rarity rankings and is an essential acquisition for any serious branch mint collector. Patience is required, since years can pass between problem-free examples. See our Liberty Head Half Eagle series history.