1830-Pi NGC AU 55 Mexico Silver 8 Reales Potosi Mint Scarce Coin (22011903C)Almost Uncirculated Mexico silver 8 reales coin. Struck at the Potosi Mint (mint mark Pi), assayer JS. Certified by NGC to AU 55, toned with underlying luster. Decent strike, very nice in hand! Dunigan Pi05: "This date is third scarcest of the 1828 1841 Period" (just behind 1829 & 1828). "Usually found in Very Fine condition. Extremely Fine and Almost Uncirculated examples appear occasionally, but they are scarce."