Watch List notes:

Potosi, Bolivia, cob 8 reales, (1)6(21-2)T, retrograde mintmark, quadrants of cross transposed. S-P21; KM-10. 26.51 grams. Thick round flan with bold and well-detailed full shield and cross-lions-castles (post-1620 lions), bold mintmark "q" (retrograde P), bold bottom half of 6 of date, well centered and lacking the usual weakness or crudeness of this period, corrosion-free XF with cleaned surfaces indicative of salvage from the Atocha (1622) but without Fisher tag or certificate.

Estimate: $200-300