Watch List notes:

Potosi, Bolivia, cob 8 reales, 1659E. S-P37a; KM-21; CT-447. 23.75 grams. Broad flan with good full cross and (slightly doubled) pillars-and-waves, lots of bold legend, all three dates and mintmarks and assayers visible, VF with toning around details, inexplicably underweight.

Estimate: $200