Potosi, Bolivia, cob 8 reales, Philip III, assayer not visible, Grade 4, ex-Sedwick Auction 1. KM-10. 9.10 grams. Very worn and thin from corrosion, most of cross and shield still discernible, lightly toned. With original Fisher tag and certificate 84-166 (assayer erroneously stated as T), pedigreed to Sedwick Auction 1, with original lot-tag 117. From: Santa Margarita, sunk in 1622 west of Key West, Florida
($300-450)