Value
                                                                                            $425
                                                                                    
Obverse
                                                                            Double-headed eagle.
                                                                                                               Lettering: 50 РУБЛЕЙ 1997Г.
AU 900 ЛМД 7.78
БАНК РОССИИ
Reverse
                                                                            Shield flanked by designs.
                                                                                                               Lettering: 850-ЛЕТИЕ ОСНОВАНИЯ МОСКВЫ
                        Extended information
                        
                                Year                            
                               Denomination                            
                               Currency                            
                                   Metal                                
                                   Krause catalog                                
                                    Y# 555
                                
                                   Weight                                
                                                                            8.8 g.                                                                    
                                    Diameter                                
                                                                            22.6
                                     mm.                                
                                    Thickness                                
                                    1.5 mm.                                
                                    Subject                                
                                    850th Anniversary - Moscow
                                
                                    Alignment                                
                                    Medal ↑↑
                                
                                    Shape                                
                                    Round
                                
                                    Edge                                
                                                                            Reeded