Westfriesland, United Netherlands, "rider" ducatoon, 1742. KM-92.1; Delm-1031. 25.24 grams. Moderately corroded but with a clear, bold date. With certificate and postcard. Recovered from: Hollandia, sunk in 1743 off the Isles of Scilly, southwest of England
Estimate: 200 - 300 USD