Watch List notes:

Potosi, Bolivia, cob 8 reales, Philip III, assayer R (curved leg), Grade 1. S-P15; KM-10; Cal-912. 24.23 grams. Broad and odd-shaped flan (part of edge crude, as made), silvery surfaces with no corrosion, bold full P-R, nearly full shield and cross. With Fisher certificate 147041. From: Atocha, sunk in 1622 west of Key West, Florida
($600-900)