MEXICO. 2 Escudos, 1757-MM. Ferdinand VI (1746-59). NGC AU-53.Fr-23; KM-127; Cal-Type 49 #168. A <strong>VERY RARE</strong> high grade example of this highly elusive type. Only a five of this three year type have been graded. This example being the finest graded of the date at NGC (second finest graded of the type), none of this type graded at PCGS. No distracting marks, bold strike with a well detailed portrait. Lustrous and quite attractive.NGC AU-53.