Auction: 11005 - The Mizhuhara Collection of Mongolian Stamps                                                                            
                    
                    Lot: 1567
                
                    
                        Mongolia  Chinese Post Office  Urga  1918 (26 Apr.) opened-out red band cover  to Kalgan  bearing, on the reverse, Junk 3c. and 6c. tied by bilingual c.d.s. type IVa and a very good strike of segmented circular Kulun/Postal Box Office/no.1 and smudged arrival c.d.s. (7.5); a small patch of discolouration. A very early example of this scarce postmark  Estimate HK$ 10,000-15,000                        
                                            
                
                    
                        Sold for                    
                        
                        
                        HK$30,000