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 Southern Ireland stamps saw little use since that political entity was quickly superseded by the Provisional Government of Ireland and later the Irish Free State (both of which applied overprints on various British and Irish revenue stamps).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.
Northern Ireland Assembly (1973)
The Northern Ireland Assembly was a legislative assembly set up by the Government of the United Kingdom on 3 May 1973 to restore devolved government to Northern Ireland with the power-sharing Northern Ireland Executive made up of unionists and nationalists. It was abolished by the Northern Ireland Act 1974.