Potosi, Bolivia, cob 8 reales, (16)21T, quadrants of cross transposed, Grade 2. S-P21; KM-10. 24.33 grams. Small, thick flan with light to moderate surface corrosion, good full shield and cross, bottom of 2 and full 1 of date. With Fisher certificate #196691 (date not mentioned). Recovered from: Atocha, sunk in 1622 west of Key West, Florida ($400-600)