Watch List notes:

Potosi, Bolivia, cob 4 reales, Philip IV, assayer not visible (ca. 1649), with crown-alone countermark on shield. KM-17a. 13.26 grams. Bold full countermark, the coin lightly struck (not really corroded) but with decent full cross, edge-split. With certificate from the salvagers. Recovered from: Capitana, sunk in 1654 off Chanduy, Ecuador
(200 - 300 USD)