Watch List notes:

Potosi, Bolivia, cob 1/2 real, 1655, PH at top (no dot), rare, ex-Ugaz. S-P37a; KM-13; Cal-587. 1.15 grams. Rare type that's difficult to find with this much detail with strong date and monogram plus PH above, somewhat off-center cross. Pedigreed to the Jorge Ugaz collection.
($75-110)