Watch List notes:

Mexico City, Mexico, cob 8 reales, (1)637P, rare, ex-Rudman. S-M19; KM-45; CT-332. 26.68 grams. Choice broad flan with bold oMP and denomination, choice full cross and full shield, flat peripheries (with two edge-splits) yet with clear 7 of date, nice toning and contrasting sediment, minimal surface corrosion. Pedigreed to the Isaac Rudman collection. Recovered from: Concepcion, sunk in 1641 off Hispaniola
($300-450)