In the recent Fritz Rudolf Künker Spring Auction Sale 2017, ended on March 16, 2017 a few rare Netherlands gold ducats was available for bidding. One of them was the Deventer 1635 ducat (Lot 5137), an extremely rare date.
The coin was sold for 1,888 EUR = $2,025, incl. Buyer’s Premium fee.
You may see this coin here.