Spain
Charles III gold 8 Escudos 1773 S-CF AU53 NGC, Seville mint, KM409.2, Fr-283, Calico type 29, #252. Considerable remaining luster, with no handling marks of note. The strike is a bit soft in the centers, with small flan flaw on Charles' neck. While not a great rarity, this Seville issue appears to me much scarcer than the Madrid issue of 1773.
Estimate: 2000-2500 USD