1842/31-Do NGC MS 61 Mexico 8 Reales Durango Mint Rare Overdate Silver Coin POP 1/1 (24070901C)Mint State Uncirculated Mexico silver 8 reales coin. Struck at the Durango Mint (mint mark Do), assayer RM. Variety with overdate (1842 31), over assayer (RM L) and Mexican eagle. Dunigan Do19: "This date is scarce. This date runs from Fine to Almost Uncirculated. Uncirculated examples are rare." Certified by NGC MS 61, Population Census: this coin, only 1 higher). Conditionally Rare! Very lightly toned with lustrous surfaces.