Potosi, Bolivia, cob 8 reales, 1772V-Y, second assayer at bottom right. S-P59; KM-unl. (cf. 45). 27.13 grams. Nice strike for the era, decidedly with Y and not V at bottom right (first we have seen), bold date, nicely toned VF with prominent graininess on opposite sides per the period (reason unknown).
Estimate: $250 - 375