Watch List notes:

Potosi, Bolivia, cob 8 reales, 1651 O, with crowned-dot-T-dot countermark on shield, ex-Kosoff, ex-Stallard. S-P35; KM-19b; Cal-1489. 25.34 grams. Richly olive-toned VF (rare as non-salvage) with choice full date outside of full cross-and-tressure, bold full countermark (scarce, Mastalir subtype Ta with high dots) near center of full shield with full P-O to left and 8-O to right, interesting old pedigree. Pedigreed to the Barry Stallard collection, purchased from A. Kosoff in the 1940s (New York), with original tag.
($500-750)