Watch List notes:

Mexico City, Mexico, cob 8 reales, 1731F, NGC genuine / Vliegenthart Treasure. S-M26; KM-47a; CT-762. 26.46 grams. Bold full oMF and nearly full date (just the tops of the digits missing) on off-center obverse, full cross, light surface corrosion, nice toning. NGC #4483523-057. Vliegenthart, sunk in 1735 off Zeeland, Netherlands

Estimate: $350-500