George III oval countermark on Mexico 1789 FM 4-Reales, Mexico City crowned value and date within

crowned value and date within oak wreath

of East Anglian style and most likely a Norwich mint reading

Minerva standing left

holding corn-ears and a torch

Graded by NGC as AU58

George III oval countermark on Mexico 1789 FM 4-Reales, Mexico City crowned value and date withinGeorge III (1760 1820), oval countermark upon Spanish Four Reales of King Charles III (1759 88), 1789 FM, struck in Mexico City, Mexico, small oval hallmark of George III right at centre of obverse, bust of Spanish King laureate and draped right, date below with stop either side, legend and toothed border surrounding, CAROLVS. III. DEI. GRATIA, rev. crowned quartered shield of arms, pillar with ribbon incuse motto either side PLUS VLTRA, legend