Watch List notes:

Potosi, Bolivia, cob 8 reales, 1670 E, mounted cross-side out in heavy silver pendant with 14K gold prongs and shackle bail. 36.58 grams total. Clearly dated (on both sides) and impressively well-toned coin with much detail, mounted in a heavy, rounded silver bezel with four gold prongs.

Estimate: $300 - $450