Watch List notes:

Potosi, Bolivia, cob 8 reales, 1666E, date as "66" between pillars. S-P37a; KM-21; CT-455. 26.51 grams. Good full cross, one full pillar, bold king's ordinal IIII and 16 of second date in legend, Fine+ with peripheral flatness and edge-split, very lightly toned.
($250-375)