 
                            
                    Auction: 13011 - The Collector's Series sale                                                                                             
                    
                    Lot: 2526
                
                    
                        South Australia
1860-69 4d. imperforate plate proof block of eighteen (6x3) from the right of the sheet, in dull lake on soft unwatermarked paper, vertical crease between first and second rows, otherwise fine. An impressive multiple, possibly the largest recorded. Photo                        
                                            
                
                    
                        Estimate                    
                        
                        
                        £800 to £1,000