Watch List notes:

Potosi, Bolivia, cob 4 reales, Philip III, assayer Q, Grade 2, ex-Atocha (1622), mounted cross-side out in silver bezel with 14K gold prongs and shackle bail. 21.02 grams total. Oval piece with good full cross, most of shield, some light corrosion and flatness but contrastingly toned in crevices. From the Atocha (1622), with Fisher certificate #203942 (tag missing).
($800-1200)