Watch List notes:

Mexico City, Mexico, 4 reales, Charles-Joanna, "Early Series," assayer G at bottom between pillars, left-leaning panel. Nesmith 11/11a; S-M2. 11.06 grams. Broad flan with full details (including legends), rich rainbow toning all over, minor surface corrosion on pillars side but a little more severe on the shield. Recovered from: "Golden Fleece wreck," sunk ca. 1550 in the northern Caribbean

Estimate: $500 - 750