Potosi, Bolivia, cob 8 reales, Philip IV, assayer not visible, mounted cross-side out in heavy 14K gold twisted-wire bezel with ornate prongs and shackle bail. 42.23 grams total. Choice full cross with partial date 161_ above, strong shield with some doubling, rainbow toned all over and set in a decorative bezel.
Estimate: 250 - 375 USD