Watch List notes:

Mexico City, Mexico, cob 8 reales, Philip IV, assayer P. S-M19; KM-45. 23.16 grams. Thick but truncated flan from edge corrosion, bold oMP, full cross and nearly full shield. With Marex tag #91-8R-1813. Maravillas, sunk in 1656 off Grand Bahama Island

Estimate: $200-300