Watch List notes:

Potosi, Bolivia, cob 4 reales, Philip III, assayer not visible, Grade 1, with original tag but certificate missing. 12.85 grams. Good full cross, full but slightly off-center shield with most of crown above, minimal corrosion. Pedigreed to the Thomas Gray collection and formerly displayed at the ANA Money Museum's "Treasures of the Deep" exhibit (2014-15), with Fisher tag #157614. Recovered from: Atocha, sunk in 1622 west of Key West, Florida

Estimate: $300 - 450