Watch List notes:

Mexico City, Mexico, 4 reales, Charles-Joanna, "Late Series," assayer L to right, mintmark M to left. S-M9; KM-18 ;CT-84. 12.89 grams. Superb specimen with bold AU details, nearly full legends, well struck and beautifully toned, minimal corrosion (at edge only). Recovered from: Santiago, sunk in 1585 on the Bassas da India atoll between Mozambique and Madagascar (east of Africa)

Estimate: $500 - 750