 
                            
                    Auction: 4013 - Ancient, English, Foreign and Islamic Coins                                                                             
                    
                    Lot: 407
                
                    
                        †Sultans of Bengal, Rukn al-din Barbak (1459-1474), silver Tanka, 10.75g., Dar ul-Zarb, AH867, legends within borders with astrological symbolism (G&G. B.525), weak areas with some shroff marks and test cuts, otherwise very fine, rare Estimate £   180-220  provenance:
ex. John Deyell collection.
This coin appears used as a type illustration for B525 in Goron and Goenka's book, "The Coins of the Indian Sultanates".  
                        
                                            
                
                    
                        Sold for                    
                        
                        
                        £150