Potosi, Bolivia, cob 8 reales, 1620 T, upper half of shield and

Potosi, Bolivia, cob 8 reales, 1620 T, upper half of shield and quadrants of cross transposed, Grade 2. S-P21; KM-10; Cal-930. 22.70 grams. Broad flan with full shield and cross, clear bottom half of 620 of date, full assayer, some light surface corrosion. With Fisher tag and photo-certificate 85A-187129. From: Atocha, sunk in 1622 west of Key West, Florida
($700-1000)