Revenue stamps of the United Kingdom
When Ireland was partitioned into Northern Ireland and Southern Ireland in 1921, separate revenue stamps were issued for both entities. Southern Ireland stamps saw little use since that political entity was quickly superseded by the Provisional Government of Ireland and later the Irish Free State (both of which applied overprints on various British and Irish revenue stamps). However, Northern Ireland continued to use separate revenue stamps until the 1980s. Northern Irish revenues include Civil Service, Dog Licence, Excise and National Insurance stamps, among many others.
National symbols of Ireland, the Republic of Ireland and Northern Ireland
Symbols of Ireland are marks, images, or objects that represent Ireland. Because Ireland was not partitioned until 1922, many of the symbols of Ireland predate the division into Southern Ireland (later Irish Free State and then Ireland) and Northern Ireland.