Mexico City, Mexico, cob 8 reales, Philip III, assayer F, mounted cross-side out in thick silver bezel with 14K gold looped prongs and shackle bail and two-dolphins embellishment.41.05 grams total.XF coin with superb full cross-lions-castles with lovely contrasting toning, the shield also full and well-detailed with bold oMF to left, king's ordinal III in legend, very heavy round bezel (the coin's edge probably lightly shaved to fit).
($250-375)