1863/4-Ga NGC MS 62 Mexico 8 Reales Guadalajara Rare Overdate Silver Coin (24112601C)Mint State Uncirculated Mexico silver 8 reales coin. Struck at Guadalajara Mint (Ga mint mark), assayer JG. An interesting overdate variety, 1863 4, that was future dated before correction. Elusive and seldom available. DP Ga45: "The 1863 4 is rare. It is possible that the 1863 4s were struck while the mint was under the control of the imperial forces of Maximilian". Last year First Republic issue just prior to the reign of Maximilian, with 8 reales