Potosi, Bolivia, cob 4 reales, Philip III, assayer Q, Grade 1,

Potosi, Bolivia, cob 4 reales, Philip III, assayer Q, Grade 1, ex-Vanguard. S-P17; KM-9; Cal-770. 12.98 grams. Choice full shield (very well-detailed) and cross, equally choice full P-Q and denomination oIIII, no corrosion, lightly toned. With Fisher/Vanguard tag and certificate #V-591.Recovered from: Atocha, sunk in 1622 west of Key West, Florida
($700-$1,000)