Watch List notes:

Potosi, Bolivia, cob 1 real, 1665E. S-P37a; KM-13; CT-1065. 3.50 grams. Broad flan with full 1665 date in legend, full and bold waves with 65 date above, top half of cross (one choice lion and one choice castle), attractively toned AU- with area of flatness.
($60-90)