Watch List notes:

Potosi, Bolivia, cob 8 reales, 1621 T, upper half of shield and quadrants of cross transposed, NGC VF 25. S-P21; KM-10; Cal-933. 26.97 grams. Broad flan with just the bottoms of the digits 621 of date visible outside of a full but doubled cross with distinctive "greyhound" lions (natural edge-crack on that side), bold full shield with P+T to left (the + ornament actually more like a cross fleury), king's ordinal III in legend, richly toned all over. Pedigreed to the Jorge Ugaz collection (stated on label).
($300-450)