Watch List notes:

Potosi, Bolivia, cob 2 reales, Philip III, assayer M, Grade 1, ex-Santa Margarita (1622), mounted cross-side out in 14K gold bezel with shackle bail. 9.40 grams total. Bold assayer M, good full cross and shield despite light surface corrosion, nicely toned, probably lightly rounded on edge to fit the nearly oval bezel. From the Santa Margarita (1622), with original Fisher tag and photo-certificate 5797.
($1500-2250)