Mexico, Charles and Joanna, Four-Reales, Mexico c. 1542-1570, Assayer Juan Guiterrez. + karolvs et iohana reges Crowned shield with emblems of Castile, Leon and Granada; on left and right, G-M., reverse +hispaniarvm:et:indiarvm: around crowned pillars of Hercules, within plv-s-vl-tra above 4. (Cf. Nesmith p.119, 46 and obverse legend p.110, 16; CCT 86; KM 18). Fine grey tone (£300-350)