Watch List notes:

Potosi, Bolivia, cob 8 reales, 1621(T), quadrants of cross transposed. S-P21; KM-10. 27.18 grams. Good full shield, full but partially flat cross, much bold legend including date and (P)HYLYPVS III (the ordinal important see because there is lots of room after the last digit of the date for extra I's to make it 1623 or even 1624, but those dates would be Philip IV), VF with toned fields, flan-crack from edge to center.

Estimate: $200