Watch List notes:

Mexico City, Mexico, 1 real, Charles-Joanna, "Late Series," assayer S to right, mintmark M to left (M-S), rare. Nesmith-76; CT-110; S-M8. Only variety of this assayer and denomination (no known S-M) and more common than higher denominations but a good example from the rarest assayer of the "Late Series" coinage, almost full legends, clear interiors, well toned.

Estimate: $500-750