In the recent Schulman BV Auction 349, ended on November 21, 2015 a beautiful undated Zwolle ducat of the Hungarian type was available for bidding (Lot 285). Zwolle ducats of this type are known in two varieties: with RODOL and with RVDOL in the obverse legend. This is the second variety, known in two copies only.
The second known copy with RVDOL variety was sold on Jacques Schulman auction 263 on April 27, 1976 (Lot 737) for 2,196 Dutch guilders ($817), incl. Buyerâ€™s Premium fee.
The recent sale of the Zwolle undated ducat of the Hungarian type was on Fritz Rudolf Kuenker Auction 105 on September 27, 2005. Coin was sold for 750â‚¬ ($903), incl. Buyerâ€™s Premium fee. Previously the same specimen was auctioneed by HD Rauch in May 6, 2009, sold for 1,176 EUR (1,522 USD), incl. Buyerâ€™s Premium fee. However, this coin was much more common variety, with RODOL in the legend.
The coin from the Schulman BV Auction 349 was sold for 1,560 EUR = $1,661, incl. Buyer’s Premium fee.
You may see this coin here.