Planned and designed as a catalogue of coins in the Delhi Museum, H. Nelson Wright's The Coinage and Metrology of the Sultans of Delhi is a corpus of coins of the Sultans of Delhi. It catalogues the full details of 1483 coins in the author's collection besides 500 other types and varieties, a number of which are the unpublished coins in private collections. It is thus a most comprehensive catalogue or corpus of coins of the Delhi Sultans and includes the coins of forty-one rulers of Delhi beginning with Muhammad I Bin Sam to Sikandar III, the last ruler of the Sur dynasty.
The book has been divided on the basis of various dynasties which ruled in succession from Delhi and at the end of each dynasty, have been added copious notes discussing in detail the coinage and the salient features of the coins of each dynasty or issued by each ruler. Particularly useful are the eight Appendices at the end of the book which deal respectively with the Metrology of the early Sultans of Delhi, assay made by Dr. S.W. Smith and Dr. H.J. Plenderleith on the coins, a table of ornaments or mint-marks, phrases and titles found on the coins, a list of the Abbasid Khalifas in Egypt, comparative table of the years of the Hijra and of the Christian era, grains and grammes-table of equivalents and geographical index besides twenty-four plates containing the reproduction of the coins and a map of India showing the mints.