Potosi, Bolivia, cob 8 reales, Philip III, assayer R (curved leg), Grade 2. S-P15; KM-10; Cal-912. 18.63 grams. Bold full assayer and king's ordinal III, well-detailed full shield and cross but both with 45-degree rotated double-strike, light surface corrosion on reverse only. With Fisher tag and photo-certificate 96A-19818. From: Atocha, sunk in 1622 west of Key West, Florida
($600-900)