MEXICO. Cob 4 Reales, ND (155?-57)-O M. Mexico City Mint. Charles & Johanna. PCGS EF-40.
KM-18 (unlisted variety); Cal-138; Nesmith-98 (unknown to Nesmith). Late Series type. Variety with plain "M" Mintmark. Perhaps one of the most available assayers from this series, this seemingly common coin is actually an EXTREMELY RARE variety with few known examples. This nicely preserved piece exhibits a decent strike with strong central design features and attractive rich patina.
From the Sydney F. Martin Collection.
Estimate: $1000.00- $1500.00