Mexico City, Mexico, copper 4 maravedis, Charles-Joanna, "Early Series," no assayer (period of assayer G), king's name as KAROLVS, very rare. Nesmith-plate XII,1; Cal-unl; KM-2. 5.44 grams. Hard to find in any condition, this VF example has faint but discernible legends and interiors, typical dark chocolate coloring all over (less oxidation than usual), clear "Early Series" markings.
Estimate: 1000 - 1500 USD