Potosi, Bolivia, cob 8 reales, Philip II, assayer B (3rd period, late style), border of boxes on reverse. S-P10; KM-5.1; CT-158. 26.90 grams. Choice full cross-lions-castles and shield, nearly full crown, much legend (including commas), bold assayer, VF with sediment in crevices. The border of boxes is a distinctive type that is more commonly associated with the border-of-x's type of 5th-period B. (Estimate: $175 - 250)