Potosi, Bolivia, cob 8 reales, 1651 E, with crowned-dot-F-dot countermark on shield. S-P36; KM-19b; Cal-1491. 24.17 grams. Bold full cross and shield with full crown above and most of countermark at top-right, dot-P-E-dot to left and E to right, full 51 of date, practically uncorroded and deeply toned in places, the edge shaved down to perfectly round shape for mounting in jewelry. Recovered from: Capitana, sunk in 1654 off Chanduy, Ecuador
Estimate: 200 - 300 USD