Watch List notes:

Mexico City, Mexico, cob 8 reales, Philip IV, assayer P. S-M19; KM-45. 26.87 grams. Huge flan with very bold oMP and most of cross, some shield but rest of coin flat (as made), 100% corrosion-free, nicely toned in crevices. Concepcion, sunk in 1641 off Hispaniola

Estimate: $150-225