Watch List notes:

Potosi, Bolivia, cob 4 reales, Philip II, assayer B (1st period). S-P4; KM-4.2. 13.69 grams. Crisp AXF with nice full shield and cross on a smallish flan, Small mintmark, bold assayer (probable B/L), light toning around details. (Estimate: $100 - 150)