Watch List notes:

Dutch ducatoon "biscuit" (completely cocooned in oxidation). 46.96 grams total. A thick cookie of oxidation, white on one side and gray-green on the other, containing either one very solid coin or two thin and corroded ones (only cleaning will tell you for sure), very neat display as is. Recovered from: Vliegenthart, sunk in 1735 off Zeeland, the Netherlands

Estimate: $125 - 200