Watch List notes:

Potosi, Bolivia, cob 1/2 real, Philip III, assayer PAL below mintmark P to left (1618 only), very rare. S-P20; KM-unl (type 6.1). 1.15 grams. Choice full monogram with full and bold PAL monogram to left, full cross, XF details but dark and moderately corroded as salvaged. (Estimate: $125 - 200)