MEXICO. 4 Maravedis, ND (1542-43)-Mo. Mexico City Mint. Charles & Johanna. PCGS Genuine--Environmental Damage, VF Details.KM-3.3; cf.Nesmith-7; Cal-Type 12. Late series. Variety with plain "M" on obverse. Far nicer than most in terms of detail.From the Sydney F. Martin Collection.