 
                            
                    Auction: 166 - The Philatelic Collectors' Series Sale
                    
                    Lot: 421
                
                    
                        British P.O. at Cartagena, August 28, 1875 envelope to Paris, struck by very fine "Carthagena/A" c.d.s., with single rate "GB/1F60c" Anglo-French accountancy marking and "12" cachet due on delivery, transit of London on back, very fine and scarce.
                        
                                            
                
                    
                        Estimate                    
                        
                        
                        $100 to $200