Mexico City, Mexico, 1/2 real, Charles-Joanna, "Late Series," assayer L to right, o to left, mintmark M at bottom (o-oMo-L). Nesmith-87b; CT-unl; S-M9. 1.53 grams. VF with nearly full legends, nice KI side but pillars side somewhat marked (long ago), toned all over.
Estimate: $175-250