Watch List notes:

Potosi, Bolivia, cob 8 reales, Philip III, assayer M/Q, quadrants of cross transposed, Grade 1. S-P18; KM-unl (10 for type); Cal-unl (cf 918). 26.60 grams. Broad, round flan with much legend, choice full shield and cross, bold mintmark, weak but full and clear M/Q, rare with quadrants of cross transposed, no corrosion. With Fisher tag and certificate 102416. From: Atocha, sunk in 1622 west of Key West, Florida
($700-1000)