Mexico
Carlos III gold 8 Escudos 1777/6 Mo-FM, KM156.2, Onza-767, AU Details (Sea Salvaged) NGC. Dull surfaces, thus probably sea salvaged, as mentioned in the slab. A very clear and scarcer overdate, rated as "Rara" in Calico's La Onza. Krause catalog price(s) for this item: $1500 in VF, $2400 in EF.
Estimate: 1250-1750 USD