Watch List notes:

Potosi, Bolivia, cob 4 reales, Philip III, assayer Q, bottom-left lion rotated, Grade 3. S-P17; KM-9; Cal-770. 12.87 grams. Full but off-center shield with clear P-Q to left, good full cross with the lower-left lion rotated 90 degrees clockwise (first we have seen), broad flan with practically no corrosion, small streaks of toning. With Fisher tag and certificate 85A-162913. From: Atocha, sunk in 1622 west of Key West, Florida
($500-750)