Watch List notes:

Potosi, Bolivia, cob 8 reales, 1620 T, q/P (retrograde P over P) for mintmark and king's name, NGC XF 45, finest known in NGC census. S-P21; KM-10; Cal-929. 27.28 grams. Broad flan with 100% full and bold date 1620 (very rare thus) outside a full cross-and-tressure, other side with bold and full shield with nearly full crown above, bold q/P+T to left and denomination to right, also bold q/P at beginning of king's name qHYLYqS in legend, deeply toned (darker on shield side). Even in this period of multiple transpositions, it is amazing that the engraver (perhaps dyslexic) actually went to the extent to "correct" the P's with retrograde P's! Pedigreed to the Jorge Ugaz collection (stated on label).
($300-450)