The Poland 20 Zlotych silver proof coin was released by the Narodowy Bank Polski in 2017 to commemorate the Five Centuries of the Reformation in Poland. Designed by Anna Watrobska-Wdowiarska, its obverse features the coat of arms while the reverse depicts the profile of Bishop Juliusz Bursche. The coin weighs 28.28 grams and has a diameter of 38.61 mm. This Poland 20 Zlotych silver-proof coin is in mint condition.