Watch List notes:

Potosi, Bolivia, cob 4 reales, Philip II, assayer R (Rincon) below mintmark P to left. S-P1; KM-4.2; Cal-518. 13.37 grams. Perfectly round flan with well-detailed full shield and crown and cross-lions-castles, also bold full P-R, some peripheral flatness, VF+ with toned fields, desirable first coinage of the Potosi mint.
($600-$900)