Watch List notes:

Potosi, Bolivia, cob 4 reales, Philip II, assayer R (Rincon) to left. S-P1; KM-4.2; Cal-518. 12.58 grams. Very broad flan extending past outer border in places, with full but mostly flat legends and crown, superb full cross-lions-castles and well-detailed full shield, weak P-R, slightly porous AU with toned fields for good contrast.
($350-500)