Watch List notes:

Mexico City, Mexico, copper 4 maravedis, Charles-Joanna, "Late Series," no assayer, o-o-M at bottom on obverse, 4 at bottom on reverse. CT-202. 6.10 grams. Typically broad flan with bold full legends, weaker inner details, AVF with hints of original luster and color, much less corroded than most.

Estimate: $500