On 2011-01-28 auctions on the National Bank of Poland has been finished and issue's prices was established for coins commemorating European Badger.

Silver coin with the denomination 20 zł:
 - Reserve gross price: 132 pln
 - Selling price (price of issue): 132 pln
 - The number of coins to sell: 68.000 pcs
 - Total emission: 80.000 pcs
 - Auction starting date: 24-01-2011 08:00
 - Auction ending date: 28-01-2011 13:00
 - Date of issue: 2011-01-27