Auction: 6010 - Important Stamps & Covers of the World - Washington Philatelic Exhibition Auction                                       
                    
                    Lot: 65
                
                    
                        Cameroon 1915 (2 July) 5s. on 3m. violet-black, the unique top right corner example showing variety surcharge double (also showing portion of a third "C.E.F."), fine unused with virtually full original gum. A true major rarity from the First World War Occupation issues.  T.A. (Tom Allen), Stanley Gibbons, Bothe and Kilian handstamps on reverse. S.G. B12c
                                            
                    
                        Sold for                    
                        
                        
                        $17,000