Watch List notes:

Mexico City, Mexico, cob 4 reales, Charles II, assayer L. S-M21; KM-39. 11.05 grams. Not much corrosion but with most of flan not struck (uneven thickness), the rest bold with full oML and nicely toned. With generic certificate from the salvagers. Joanna, sunk in 1682 off South Africa

Estimate: $100-150