Shield Type
Mexico City, Mexico, cob 1/2 real, 1642(P), very rare.S-M19; KM-unl (22 for type); Cal-unl.1.75 grams.Typically crude but with full and fairly clear 42 of date (possibly 2/1 or 2/0), first we have seen or heard of but one of two known according to the consignor, also with bold full mintmark oM, nearly full cross despite peripheral flatness, About Fine with orange sediment on fields.
Estimate: 125-200 USD