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. 12.94 grams. Good full cross-lions-castles with 100% full legend on that side, nice full shield and crown with full king's name, P-R and denomination o-IIII, lightly toned but slightly porous XF with small part of edge missing.
($350-$500)