""A Treatise On The Coins Of The Realm: In A Letter To The King"" is a book written by Charles Jenkinson Earl Of Liverpool in 1880. The book is a comprehensive guide to the coins of the realm, providing a detailed history of the coins used in England from the Anglo-Saxon period to the present day. The author addresses the various denominations of coins, their designs, and the materials used to create them. The book also includes a discussion of the...