Watch List notes:

Mexico City, Mexico, cob 8 reales, Philip IV, assayer D. S-M18a; KM-45. 25.00 grams. Bold oMD and nearly full shield (good contrast), full cross with weakness in peripheries, light corrosion near edge only, spots of toning. Recovered from: "Spice Islands wreck," sunk ca. 1629 off Southeast Asia (Estimate: $200 - 300)