Watch List notes:

Potosi, Bolivia, cob 8 reales, (1647-9)Z, no countermark (rare). 25.50 grams. Round flan with typical edge-crack, bold full P-Z, nearly full but double-struck shield and cross, extensive peripheral flatness, a low-weight coin that certainly should have been melted in 1649-52. From the Marco Gardini collection of Potosi cob 8 reales.

Estimate: $200 - 300