Watch List notes:

Potosi, Bolivia, cob 8 reales, Philip III, assayer T, mintmark "q" (retrograde P), Grade 2. S-P21; KM-10. 26.48 grams. Choice full shield and cross on a thick round flan, bold q+T that appears twice due to double-strike, light surface corrosion confined to peripheries, edge-split, lightly toned. With Fisher photo-certificate 85A-152732 (tag missing). From: Atocha, sunk in 1622 west of Key West, Florida
($700-1000)