1868-C PCGS AU 58 Mexico 8 Reales Culiacan Mint Rare Silver Coin POP 1/0 (26041801C)Almost Uncirculated Mexico silver 8 reales coin. Struck at the Culiacan Mint (C mint mark), assayer CE. DP Cn25: The normal date is scarce.. This date usually comes Fine to Very Fine. Extremely Fine specimens are difficult to locate and anything better is rare." Lightly toned with underlying luster, very appealing in hand. Certified by PCGS to AU 58, Population Census: this coin, none higher.