Potosi, Bolivia, cob 1/2 real, Philip III, assayer R (curved-leg) below mintmark P to left, ex-Ugaz, mounted cross-side out in 14K gold bezel with fixed bail. 2.89 grams total. Choice full cross with partial legend text, crude yet full monogram side, dark gray-toned fields. Pedigreed to the Jorge Ugaz collection.
Estimate: 150 - 225 USD