Potosi, Bolivia, cob 8 reales, Philip III, assayer T, quadrants of cross transposed, Grade 1. S-P21; KM-10; Cal-Type 165. 23.70 grams. Choice full shield with bold assayer T, full but partially corroded cross. With Fisher certificate 155345. From: Atocha, sunk in 1622 west of Key West, Florida
($600-900)