MEXICO. 8 Reales, 1854-Go PF. Guanajuato Mint. PCGS MS-62. KM-377.8; DP-Go38. This Guanajuato piece boasts fields replete with an especially sleek luster. Minor rubbing on the high points of the devices accounts for the grade, but the coin otherwise presents like a much higher-grade piece. Some even toning gives this crown a lovely warm glow.