Watch List notes:

Potosi, Bolivia, cob 4 reales, (1651-2) E, crowned-F (Mastalir Fa1) countermark on shield. S-P36; KM-17b; Cal-Type 279. 12.25 grams. Choice full shield with most of countermark, both assayers clear, full but slightly doubled cross, Fine+ with some flat spots, darkly toned fields, minor edge-splits. Pedigreed to the Jorge Ugaz collection.
($250-375)