Potosi, Bolivia, cob 1 real, 1677+77/6E, rare. S-P37b; KM-23; CT-unl. 3.92 grams. Choice full pillars with bold (clean) date, pomegranate at top and POTOSI in legend, incomplete cross with bold 77/6 date below and mintmark P to left, king's ordinal II in legend, attractively toned XF. ($175-250)