Watch List notes:

Holland (Amsterdam mint), United Netherlands, "rider" ducatoon, 1673, rare. Dav-4933; Delm-unl. 32.04 grams. Lustrous AU details (no corrosion) on a crude planchet with large edge crack and, interestingly enough, an overstruck, circular plug of silver that is loose but miraculously stayed with the coin, just the top of the last digit of the date visible. Recovered from: DeLiefde, sunk in 1711 off the Shetland Isles, north of Scotland

Estimate: $200-300