Watch List notes:

Potosi, Bolivia, cob 2 reales, Philip III, assayer not visible, Grade 1, ex-Atocha (1622), mounted cross-side out in 14K gold bezel with Atocha class-1C emerald (1.34 carats) at top below shackle bail. 11.95 grams total. Solid coin with toning all over, full cross and shield (faint surface porosity), with impressively dark natural emerald mounted above. Coin and emerald both from the Atocha (1622), with Fisher certificates 221718 and 62296 (tags missing).
($1500-2250)