Watch List notes:

Potosi, Bolivia, cob 8 reales, Philip III, assayer Q/C, rare variety with P•Q over P-C. 24.54 grams. Very broad, oblong flan with bold full P•Q with the • inside a C, full shield and cross, solid flan despite light corrosion all over. Pedigreed to the Thomas Gray collection and formerly displayed at the ANA Money Museum's "Treasures of the Deep" exhibit (2014-15). Recovered from: "Rill Cove wreck," sunk ca. 1618 off Cornwall, England

Estimate: $250 - 375