Watch List notes:

Potosi, Bolivia, cob 4 reales, Philip II, assayer B (1st period). 13.30 grams. Very broad flan with choice full shield (intricately detailed), P-B (doubled) to left and denomination o-iiii to right, most of crown above, the cross also full but slightly doubled, XF+ with dark toning around edge only, scarce earliest issue of assayer B.

Estimate: $200 - 300