Potosi, Bolivia, cob 8 reales, Philip III, assayer R (curved leg). S-P15; KM-10; Cal-912. 27.00 grams. Choice near Mint State piece with bold full shield and cross, lustrous surfaces throughout, small edge-flaw as struck. From the "Wild Horse River Wreck" of ca. 1620 (Sedwick Auction 4, with original lot-tag 232), with photo-certificate.
Estimate: 200 - 300 USD