Watch List notes:

Potosi, Bolivia, cob 4 reales, Philip II, assayer B (2nd period). S-P6; KM-4.2; Cal-525. 13.64 grams. Richly toned choice XF with sharply detailed complete shield and cross (if a bit doubled), weaker assayer B, note the looser-dot borders distinguishing 2nd period from 1st. Pedigreed to the Jorge Ugaz collection.
($200-300)