Watch List notes:

Potosi, Bolivia, cob 4 reales, Philip III, assayer Q/R, very rare, Grade 2. S-P17; KM-9; CT-unl. 12.99 grams. Bold P-Q with clear Q/R (one of only three examples we could trace), good full cross, full but weaker shield, minimal surface corrosion, Grade not mentioned on certificate. Pedigreed to the Classics collection, with Fisher sticker and certificate #146652. Recovered from: Atocha, sunk in 1622 west of Key West, Florida

Estimate: $700-1000