WordPress Website
Catalogue Search


            Preparing collector insight…
            
                                    Search the UPA catalogue
                                                    Describe what you collect in ordinary language, or search by country, date, Stanley Gibbons reference, description and classification.
                            

            
                                                Natural-language catalogue discovery
                                
                    Keywords, country, date or SG reference
                    
                        
                        
                    
                

                
                    More filters
                    
                        
                            Country / area
                            
                        
                        
                            Classification
                            
                        
                        
                            Minimum estimate (£)
                            
                        
                        
                            Maximum estimate (£)
                            
                        
                        
                            Sort results
                            
                        
                    
                    
                        
                        Clear all
                    
                
            

            
                Perforation-assisted identificationAlready know the stamp, country or SG reference? Add its measured perforation to narrow possible catalogue matches and help distinguish perforation varieties.Try UPA’s Digital Perf Reader ↗
                
                                                            Measured perforation
                    
                    Use this after identifying or searching for the stamp. Perforation is treated as one identification characteristic, not proof of identity or authenticity. Only perforation details explicitly recorded in UPA catalogue descriptions are matched.
                
            

            
                
                Save interesting lots as you browse this catalogue.
                            

            
                
                    2
                    lots found                                            UPA103
                                    
                                    Catalogue closes October 6, 2026
                            

                            Related-lot discovery: showing stronger factual matches to Lot 18743. Distinctive philatelic features are prioritised over generic similarities such as format, condition or date; results are ranked locally from the full current UPA catalogue.
            
                            
                                                    
            
                                    UPA
                                Lot 18738
            
            
                
                    Spain                    MX                                    
                                    Related lotRelated to Lot 18743 · Same country / area · Overprint
                                                
                    
                    
                                                
                        Ask a question about Lot 18738
                        
                        Answers separate UPA catalogue facts from general philatelic guidance.
                    
                                    
                                Alfonso  portrait definitives set overprinted  Aereo m.m. (5)
                                    
                        Philatelic terms
                        
                                                            
                                                            
                                                    
                                                    
                                SG — Stanley Gibbons
                                The Stanley Gibbons catalogue reference used to identify and catalogue stamps.
                            
                                                    
                                SG value — Stanley Gibbons catalogue value
                                The catalogue value quoted from Stanley Gibbons. It is not the same as the UPA auction estimate or a guaranteed selling price.
                            
                                                General philatelic guidance — separate from the UPA catalogue description.
                    
                                
                    Date
1920
                    SG
353-7
                    SG value
£90.00
                
                
                    
                        Estimate
                        £45.00
                    
                    
                        
                                                    Why this lot?
                                                Find similar
                                                                            View / bid
                                            
                
            
        
                                                            
            
                                    UPA
                                Lot 18744
            
            
                
                    Spain                    U                                    
                                    Related lotRelated to Lot 18743 · Same country / area · Similar period · Same classification
                                                
                    
                    
                                                
                        Ask a question about Lot 18744
                        
                        Answers separate UPA catalogue facts from general philatelic guidance.
                    
                                    
                                National Uprising set f.u. (4)
                                    
                        Philatelic terms
                        
                                                            
                                                            
                                                            
                                                    
                                                    
                                U — Used
                                A stamp that has been used, normally evidenced by a postal or fiscal cancellation.
                            
                                                    
                                SG — Stanley Gibbons
                                The Stanley Gibbons catalogue reference used to identify and catalogue stamps.
                            
                                                    
                                SG value — Stanley Gibbons catalogue value
                                The catalogue value quoted from Stanley Gibbons. It is not the same as the UPA auction estimate or a guaranteed selling price.
                            
                                                General philatelic guidance — separate from the UPA catalogue description.
                    
                                
                    Date
1938
                    SG
926-9
                    SG value
£150.00
                
                
                    
                        Estimate
                        £65.00
                    
                    
                        
                                                    Why this lot?
                                                Find similar
                                                                            View / bid