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                Digital Perf ReaderMeasure a stamp with UPA’s smartphone reader, then use the returned perforation measurement to narrow this catalogue.
                
                                        Perforation measurement
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                    Stage 6.5 bridge: the reader can return a measurement as upa_perf; catalogue matching remains grounded in perforation information recorded in UPA lot descriptions.
                
            

            
                
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                    1
                    lot found                                            UPA103
                                    
                                    Catalogue closes October 6, 2026
                            

                            Related-lot discovery: showing stronger factual matches to Lot 182. Distinctive philatelic features are prioritised over generic similarities such as format, condition or date; results are ranked locally from the full current UPA catalogue.
            
                            
                                                    
            
                                    
                                Lot 183
            
            
                
                    Afghanistan                    MH                                    
                                    Related lotRelated to Lot 182 · Same country / area · Similar period
                                                
                    
                    
                                                
                        Ask a question about Lot 183
                        
                        Answers separate UPA catalogue facts from general philatelic guidance.
                    
                                    
                                Sanar purple 'Wide outer circle', imperf cut square with clear margins, laid paper, unused & without gum, RPS Photo Certificate.
                                    
                        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.
                            
                                                    
                                imperf — Imperforate
                                A stamp produced without perforations separating it from adjoining stamps.
                            
                                                General philatelic guidance — separate from the UPA catalogue description.
                    
                                
                    Date
1875-76
                    SG
20a
                    SG value
£160.00
                
                
                    
                        Estimate
                        £90.00
                    
                    
                        
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