Potosi, Bolivia, cob 4 reales, Philip IV, assayer T (mid- to late 1620s), mounted cross-side out in twisted-wire silver bezel with 14K gold prongs and shackle bail. 21.80 grams total. Full but doubled cross, full but off-center shield with clear P-dot-T to left, XF with tan sediment in crevices. With photo-certificate.
($200-375)