1572-M NGC AU 55 Mexico 4 Reales Philip II Spain Colonial Coin (24043003C)Almost Uncirculated Mexico Colonial Spain silver 4 reales coin, 13. 61g. Early shield type minted between 1572 and 1589 at the Mexico City Mint (mint mark: M, Assayer: O). Certified by NGC to AU 55. Superb quality: well struck and centered on circular flan with nearly complete, readable legends, including: PHILIPPVS II. Obverse: PHILIPPVS II DEI GRATIA, shield with arms of Spain, IIII to left and M O to right. Reverse: HISPANIARVM ET INDIARVM RX,