Spain
Charles III gold 8 Escudos 1779 M-PJ, Madrid mint, KM409.1, Onza-731, XF Details (Obverse damage, cleaned) NGC. A small gouge and not too intrusive hairlines account for the assigned grade. Still a presentable example of this date, rated as "Very Rare" in the Onza book.
Estimate: 1500-1800 USD