Watch List notes:

Mexico City, Mexico, cob 8 reales, (1)638/7(P), rare.S-M19; KM-unl (45 for type); Cal-unl (Type 319).22.26 grams.Bold date with clear overdate, most of cross and shield despite issues with centering, corrosion and peripheral flatness, nicely toned.With card from the salvors, with official presidential stamp on back. From: Concepcion, sunk in 1641 off Hispaniola
($250-375)