Watch List notes:

Potosi, Bolivia, cob 8 reales, 1617(M), Grade 3. S-P19; KM-10; CT-129. 22.46 grams. Broad flan with clear date outside full cross, the full shield slightly doubled, with one edge-split and light to moderate surface corrosion all over. With Fisher certificate #176168. Recovered from: Atocha, sunk in 1622 west of Key West, Florida

Estimate: $350 - 500