Watch List notes:

Potosi, Bolivia, cob 4 reales, Philip II, assayer B (3rd period). S-P10; KM-4.2. 13.48 grams. Broad flan with much legend, full but weak shield and cross, bold P-B, curious minor doubling that renders denomination as "...." and imparts a strange "XXV" (actually a tressure junction) on the left arm of the cross, AVF.
($150-225)