Auction: 16USA - The Frederick R Mayer Collection of Costa Rica                                                                          
                    
                    Lot: 61
                
                    
                        #1, 1863 1/2r Blue, a single and a vertical pair, all centered to top, tied to rarely seen triple rate folded letter from Puntarenas to San Jose dated March 23, 1872, cancels bit indistinct, blue circular sender´s cachet handstamp at bottom left, from the famous Millet correspondence, fine.   Estimate US$ 450-525                        
                                            
                
                    
                        Sold for                    
                        
                        
                        $2,000