Watch List notes:

Mexico City, Mexico, 4 reales, Charles-Joanna," Early Series," assayer P to right, mintmark M to left (oMo-oPo). Nesmith-26 for type / 26a; CT-type 75; S-M4. 12.17 grams. Bold full legends, inner details all there but weakly struck, dark all over from light oxidation, HISPANIARVM variety. With Sedwick photo-certificate. Recovered from: "Golden Fleece wreck," sunk ca. 1550 in the northern Caribbean
($350-500)