Watch List notes:

Mexico City, Mexico, 4 reales, Charles-Joanna, "Late Series," assayer A to right, mintmark M to left (M-A). Nesmith-58 type; CT-79; S-M6. 12.50 grams Light surface corrosion on most of shield side and near edge on both sides but otherwise lustrous AU with full legends. Recovered from: "Golden Fleece wreck," sunk ca. 1550 in the Northern Caribbean (Estimate: $350 - 500)