![Poland. 20 Zlotych 2017, Polish Thermopylae - Zadwórze 17 VIII 1920, Konstanty Zarugiewicz - Proof Poland. 20 Zlotych 2017, Polish Thermopylae - Zadwórze 17 VIII 1920, Konstanty Zarugiewicz - Proof](https://sklep.pgnum.pl/83437-large_default/poland-20-zlotych-2017-polish-thermopylae-zadworze-17-viii-1920-konstanty-zarugiewicz-proof.jpg)
![Poland. 20 Zlotych 2017, Polish Thermopylae - Zadwórze 17 VIII 1920, Konstanty Zarugiewicz - Proof Poland. 20 Zlotych 2017, Polish Thermopylae - Zadwórze 17 VIII 1920, Konstanty Zarugiewicz - Proof](https://sklep.pgnum.pl/83437-large_default/poland-20-zlotych-2017-polish-thermopylae-zadworze-17-viii-1920-konstanty-zarugiewicz-proof.jpg)
Poland. 20 Zlotych 2017, Polish Thermopylae - Zadwórze 17 VIII 1920, Konstanty Zarugiewicz, by Urszula Walerzak, Parchimowicz 1397, KM Y# 992, Fischer: K(20) 083, Silver 38,61 mm, weight 28,28 g. .925, Condition Proof, coin in original NBP box, certificate of authenticity