Engraver’s initial appears in the triangular space between the sheld, cornucopia, and Britannia’s dress. Certification:NGC AU 58 4629086-003. George III (George William Frederick; 4 June 1738 – 29 January 1820) was King of Great Britain and King of Ireland from 25 October 1760 until the union of the two countries on 1 January 1801, after which he was King of the United Kingdom of Great Britain and Ireland until his death.