Watch List notes:

Potosi, Bolivia, cob 8 reales, 1649 O, no countermark (very rare), ex-Mastalir (Plate). S-P35; KM-19b; Cal-1487. 26.61 grams. Broad flan with virtually no corrosion but worn and flat in places, still with full shield and cross and with much legend including PHELIPVS IIII and 9 of date, unevenly toned, parts of edge crude (as made), one of only two of this host type known without any countermarks. Pedigreed to the Robert Mastalir Collection and plated on page 58 of Part A and page 399 of Part B of his books The Great Transition at the Potosi Mint, 1649-1652: The 1649-1652 Crowned Shield Coinage and the Countermarks of 1652 (2021), with copy of Moro certificate countersigned by Daniel Frank Sedwick.Recovered from: Capitana, sunk in 1654 off Chanduy, Ecuador.

Estimate: $350 - $500