Watch List notes:

Potosi, Bolivia, cob 8 reales, Philip II, assayer B (5th period), borders of x's on both sides.S-P14; KM-5.5; Cal-672.27.20 grams.VF/XF with a dark reverse from environmental exposure, doubled yet full shield and cross-and-tressure, bold mintmark and assayer, tougher variety with borders made of x's.From: Shield Type
($150-225)