Potosi, Bolivia, cob 8 reales, 16(1)7M, Grade 3. S-P19; KM-10; CT-129. 21.91 grams. Bold shield and full cross, full 16 of date, corrosion only on part of edge (with pieces missing). With Fisher/Miguel certificate #TM1991. Recovered from: Atocha, sunk in 1622 west of Key West, Florida (Estimate: $300 - 450)