In the recent ICE Auction Galleries auction 3, ended on November 1, 2015 a nice Zeeland 1631 ducat was available for bidding (Lot 303). It is a rare date of the Zeeland single ducats, minted in Middelburg.

The coin was sold for 474 EUR = $522, incl. Buyer’s Premium fee.

You may see this coin here.

Zeeland 1631 ducat
(source: www.ice-auction.com)