^Lot 1605 BOLIVIA, Potosí, cob 4 reales, Philip IV, assayer not visible (1630s).

BOLIVIA, Potosí, cob 4 reales, Philip IV, assayer not visible (1630s). KM-17a; Cal-Type 279. 12.05 grams. A bit corroded yet solid with nicely detailed and nearly complete shield and cross, edges a bit crude (as made), dark toning in the recessed areas. With original certificate from Captain Tracy Bowden through his contract with the Dominican Republic. Recovered from: Concepción, sunk in 1641 off Hispaniola