Watch List notes:

Overijssel, United Netherlands, "rider" ducatoon, 1734, NGC UNC details / saltwater damage / Vliegenthart (Shipwreck Label). KM-80; Dav-1829. Very sharp and lustrous, with lovely gunmetal toning, practically no evidence of pitting or corrosion. NGC #6289300-016. From: Vliegenthart, sunk in 1735 off Zeeland, Netherlands
($250-375)