Watch List notes:

Dutch ducatoon "biscuit" (completely cocooned in oxidation). 42.56 grams total. A thick cookie of oxidation, all gray with areas of white and orange, containing either one very solid coin or two thin and corroded ones (only cleaning will tell you for sure), very neat display as is. With Sedwick certificate from 2004. Recovered from: Vliegenthart, sunk in 1735 off Zeeland, the Netherlands

Estimate: $125 - 200