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                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.
                
            

            
                
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                    2
                    lots found                                            UPA103
                                    
                                    Catalogue closes October 6, 2026
                            

                            Related-lot discovery: showing stronger factual matches to Lot 4947. 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 4946
            
            
                
                    Colombia                    MH                                    
                                    Related lotRelated to Lot 4947 · Same country / area · Similar period
                                                
                    
                    
                                                
                        Ask a question about Lot 4946
                        
                        Answers separate UPA catalogue facts from general philatelic guidance.
                    
                                    
                                REGISTRATION 'A' 5c (2, different papers, one signed in pencil on reverse) and 'R' 5c (2, both forgeries, one by Fournier), unused.
                                    
                        Philatelic terms
                        
                                                            
                                                    
                                                    
                                SG — Stanley Gibbons
                                The Stanley Gibbons catalogue reference used to identify and catalogue stamps.
                            
                                                General philatelic guidance — separate from the UPA catalogue description.
                    
                                
                    Date
1865
                    SG
R42/3
                                    
                
                    
                        Estimate
                        £21.00
                    
                    
                        
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                                    UPA
                                Lot 4945
            
            
                
                    Colombia                    CC                                    
                                    Related lotRelated to Lot 4947 · Same country / area · Related period · Same classification
                                                
                    
                    
                                                
                        Ask a question about Lot 4945
                        
                        Answers separate UPA catalogue facts from general philatelic guidance.
                    
                                    
                                ALL DIFFERENT MINT & USED COLLECTION in mounts on Ideal album pages, Inc 1867-83 imperf selections to 10 peso used, later perf ranges to 10 pseo mint & used, useful assembly of 'Back of the book' on clipped pieces with Telegraph to 1 peso, Registration stamps etc plus Cucuta & a Cundinamarca range with values to 1 peso. (165+ stamps)
                                    
                        Philatelic terms
                        
                                                            
                                                            
                                                    
                                                    
                                imperf — Imperforate
                                A stamp produced without perforations separating it from adjoining stamps.
                            
                                                    
                                perf — Perforation
                                The rows of holes or cuts between stamps that allow them to be separated; measurements describe the spacing of those perforations.
                            
                                                General philatelic guidance — separate from the UPA catalogue description.
                    
                                
                    Date
1853-1911
                                                        
                
                    
                        Estimate
                        £325.00
                    
                    
                        
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