 
                            
                    Auction: 16USA - The Frederick R Mayer Collection of Costa Rica                                                                          
                    
                    Lot: 142
                
                    
                        #25-34, Balance of the 1889 Soto exhibit collection on thirteen exhibition pages, includes seven die essays in black, a set of small die proofs in black and another set in the issues colors, a set with ""Specimen"" overprints (the 10P does not exist with a Specimen overprint), seven imperforate between pairs and twelve covers, with values to 20c, includes on cover to Mexico and one cover with World´s Columbian Exposition/Latin Amercian Department corner card and one cover used from Alajuela, largely fine-very f   Estimate US$ 1,000-1,200                        
                                            
                
                    
                        Sold for                    
                        
                        
                        $10,000