Obverse
                                                                            Coat of arms of Poland in center, denomination, date and country name around
                                                                                                               Lettering: POLSKA RZECZPOSPOLITA LUDOWA
1973 
DWASZIESCIA 
ZŁOTYCH
MW
Reverse
                                                                            Tree, denomination, coin type
                                                                                                               Lettering: PRÓBA 
20 ZŁ
                        Extended information
                        
                                Year                            
                               Denomination                            
                               Currency                            
                                   Metal                                
                                                                            Copper-Nickel                                                                     
                                   Krause catalog                                
                                    KM# Pr214
                                
                                   Weight                                
                                                                            10.2 g.                                                                    
                                    Diameter                                
                                                                            29
                                     mm.                                
                                    Engraver                                
                                    Jerzy Jarnuszkiewicz                                
                                    Alignment                                
                                    Medal ↑↑
                                
                                    Shape                                
                                    Round
                                
                                    Edge                                
                                                                            Reeded











