Revenue stamps of Northern Ireland
Upon the partition of Ireland in 1921, separate revenue stamps began to be issued for both Northern Ireland and Southern Ireland. The latter were withdrawn soon afterwards upon the establishment of the Provisional Government, but the former continued to issue revenue stamps until the late 20th century. The need for separate issues for Northern Ireland came about since taxes raised there were meant to remain in the country. Most Northern Irish revenue stamps were British key types with appropriate inscriptions, but there were a number of different issues as well.
History of the Orange Institution
The Fourth Home Rule Act was passed as the Government of Ireland Act 1920, the north eastern part of Ulster being partitioned from Southern Ireland as Northern Ireland. This new self-governing entity within the United Kingdom was confirmed under the terms of the Anglo-Irish Treaty of 1921. Southern Ireland became the Irish Free State in December 1922, then, in December 1937, it became Éire. This independent Irish state has been popularly known (in English) as the Republic of Ireland since it left the Commonwealth in April 1949.