Potosi, Bolivia, cob 8 reales, Philip III, assayer Q, Grade 1. S-P17; KM-10; CT-124. 26.40 grams. Nicely toned and corrosion-free, with bold assayer, good full shield and cross. With Fisher certificate #156240 (no tag). Recovered from: Atocha, sunk in 1622 west of Key West, Florida ($400-600)