Watch List notes:

Mexico City, Mexico, cob 8 reales, (173)2F, NGC genuine / Vliegenthart Treasure (extra-thick slab). S-M26; KM-47a; CT-764. 25.89 grams. Bold mintmark and full 2 of date, bold and nice but off-center cross, some surface corrosion but nicely toned. NGC #4483551-043. Vliegenthart, sunk in 1735 off Zeeland, Netherlands

Estimate: $300-450