Watch List notes:

Potosi, Bolivia, cob 8 reales, 1620 T, mintmark q (retrograde P) over P, quadrants of cross transposed, Grade 1, rare. S-P21; KM-10; Cal-930. 25.22 grams. Small thick flan with edge-splits (one deep), bold 62 with final digit 0 twice from double-striking, nice full shield with bold q/P+T to left, virtually no corrosion but parts of cross flat. With Fisher tag and certificate 85A-142108. From: Atocha, sunk in 1622 west of Key West, Florida
($1000-1500)