Struck at the Potosi Mint (mint mark Pi), assayer MC.
Well struck with luster.
Certified by NGC to XF Details Cleaned (not significantly distracting).
Dunigan Pi31: "This date is very scarce to rare and a greatly underrated coin. While the number of known specimens of the other dates in the 1850s period has increased, few additional examples of this date have surfaced.The relative rarity of this date has increased. Normally found about Very Fine. Extremely Fine examples are difficult to obtain and higher grade specimens are very scarce."