Potosi, Bolivia, cob 8 reales, Philip III, assayer not visible, Grade 1. KM-10; Cal-Type 165. 26.57 grams. Good full shield and cross, slightly worn but corrosion-free, silvery. With Fisher tag and photo-certificate 198245. From: Atocha, sunk in 1622 west of Key West, Florida
($600-900)