Bolivia
Philip III Mounted "Atocha Shipwreck" Cob 8 Reales ND (1598-1621) P-Q XF, Potosi mint, KM10. 38mm (coin only). 37.52gm. A sea-salvaged 8 Reales from the Potosi mint, housed in a gold bezel that is adorned with a lion motif at the top and a castle decoration that contains a small, diamond-like setting at the bottom. From the Atocha shipwreck, and quite popular as such.
Estimate: 1000-1200 USD