Watch List notes:

Mexico City, Mexico, cob 8 reales, Philip IV, assayer P.S-M19; KM-45; Cal-Type 319.26.98 grams.Solid (no corrosion) but white from cleaning, with nearly full shield and cross and oMP, typically peripherally flat, hairline edge-split. From: Concepcion, sunk in 1641 off Hispaniola
($175-250)