Potosi, Bolivia, cob 8 reales, (1)651E, with crowned-dot-F-dot countermark (4 dots) on shield. S-P36; KM-19b; CT-511. 25.40 grams. Nearly full countermark on full shield, full but weaker cross, bold P-E, lightly toned, with light corrosion at edge only. With Marex tag #91-8R-0501. Recovered from: Maravillas, sunk in 1656 off Grand Bahama Island (Estimate: $400 - 600)