Watch List notes:

Potosi, Bolivia, cob 8 reales, 1661E, ex-Karon. S-P37a; KM-21; CT-450. 27.37 grams. Broad flan with good full cross-lions-castles and pillars-and-waves (slightly off-center), full EL PERV and king's ordinal in legend, three full dates, XF with hints of luster and toning, desirable pedigree. Pedigreed to the Paul Karon collection (Ponterio auction of March 1990, with original lot-tag #118.

Estimate: $400 - 600