Watch List notes:

Potosi, Bolivia, cob 8 reales, Philip III, assayer M, Grade 2. S-P18; KM-10; CT-123. 25.49 grams. Interesting seven-sided shape, with bold full shield and cross, most of crown, solid but silvery, minimal surface corrosion. With Fisher certificate #199903. Recovered from: Atocha, sunk in 1622 west of Key West, Florida

Estimate: $300 - 450