Mexico
Ferdinand VI 4 Reales 1750/40 Mo-MF AU Details (corrosion) NGC, Mexico City mint, KM95. Faint but certain overdate. Sharply detailed with little actual wear, some wiping evidence and a limited area of apparent surface corrosion through "HISPAN" on the shield side. A rare date in presentable grade, with no examples included in the current NGC census.
Estimate: 200-300 USD