Watch List notes:

Mexico City, Mexico, cob 4 reales, 1729R. S-M24; KM-40a; Cal-1089. 13.41 grams. Full oMR and 172 of date, no corrosion but some dark "horn silver" and somewhat lightly struck. With original (generic) certificate from the salvagers.Recovered from: Rooswijk, sunk in 1739 southeast of England
($125-$200)