Mexico City, Mexico, cob 1/2 real, Philip II, assayer O to left, mintmark M to right, mounted cross-side out in sterling silver bezel with 14K gold prongs and bail with emerald. 6.01 grams total. Broad flan with choice full cross, monogram with bold assayer, nearly full legends, AXF with deep edge-crack. Emerald in bail is 3mm AAA. With photo-certificate.
Estimate: $200-300