Watch List notes:

Mexico City, Mexico, 1/2 real, Charles-Joanna, "Late Series," assayer L to right, o in middle, mintmark M to left of monogram (M-o-L), encapsulated NGC MS 62. Nesmith-83; S-M9; KM-6.5; CT-180. Lustrous and lightly rainbow toned, with all details full and bold, probably the finest known and very rare at anywhere near this exceptional grade.

Estimate: $1250