On 2012-09-06 auctions on the National Bank of Poland has been finished and issue's prices was established for coins commemorating Bolesław Prus.

Gold coin with the denomination 200 zł:
 - Reserve gross price: 2750 pln
 - Selling price (price of issue): 2750 pln
 - The number of coins to sell: 2.700 pcs
 - Total emission: 3.000 pcs
 - Auction starting date: 03-09-2012 08:00
 - Auction ending date: 06-09-2012 13:00
 - Date of issue: 20-09-2012

Silver coin with the denomination 10 zł:
 - Reserve gross price: 95 pln
 - Selling price (price of issue): 95 pln
 - The number of coins to sell: 27.000 pcs
 - Total emission: 30.000 pcs
 - Auction starting date: 03-09-2012 08:00
 - Auction ending date: 06-09-2012 13:00
 - Date of issue: 20-09-2012

20-09-2012 is a day of issue coin with the denomination 2 zł and total mintage of 800.000 pieces.