Potosi, Bolivia, cob 8 reales, Philip IV, assayer E (1651-2), with crowned-dot-F-dot countermark (two dots) on shield.S-P36; KM-19b; Cal-Type 327.18.04 grams.Thin and worn from corrosion but with bold full countermark on good full shield with clear 8-E to right, the cross full but quite weak, toned in crevices for good contrast. From: Capitana, sunk in 1654 off Chanduy, Ecuador
($200-300)