Watch List notes:

Potosi, Bolivia, cob 4 reales, 1661E, denomination 4/2. S-P37a; KM-18; CT-753. 14.07 grams. Broad flan with full and bold pillars-and-waves and cross but peripherally flat, bold main date and parts of both others, but most interesting feature is the very bold denomination 4/2, AVF with brown and black toning. ($250-375)