Medal commemorating the appointment of the Duke of Clarence as Lord High Admiral. Obverse: Head of the Duke of Clarence (right). Legend: 'H.R.H. WILLIAM HENRY DUKE OF CLARENCE LORD HIGH ADMIRAL OF GREAT BRITAIN AND IRELAND . GEORG : IV : REX : MDCCCXXVIII.' Reverse: Britannia, armed, a trident in her right hand, a shield in her left, walking on the sea; two battleships under sail in the distance. Legend: 'HER MARCH IS O'ER THE MOUNTAIN WAVE HER HOME IS ON THE DEEP.'