Mexico City, Mexico, copper 4 maravedis, Charles-Joanna, "Late Series," no assayer (period of assayer G), king's name as CAROLVS. Nesmith-5; Cal-26; KM-unl. 6.02 grams. Round with full legends and interiors despite spots of oxidation around edges, attractive medium chocolate coloring, hard to find in this condition.
Estimate: 600 - 900 USD