Watch List notes:

Potosi, Bolivia, cob 4 reales, Philip IV, assayer FR (ca. 1640), struck with an 8R-sized shield. S-P28; KM-17a. 12.09 grams. VF with an off-center obverse featuring a large, 8R-sized shield alongside normal sized mintmark and assayer P-dot-FR, decent cross, some edge cracks as made. Pedigreed to the Jorge Ugaz collection.
($150-225)