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 Southern Ireland stamps saw little use since that political entity was quickly superseded by the Provisional Government of Ireland and later the Irish Free State (both of which applied overprints on various British and Irish revenue stamps).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 Executive
The original Northern Ireland Executive was established on 1 January 1974, following the Sunningdale Agreement. It comprised a voluntary coalition between the Ulster Unionist Party, Social Democratic and Labour Party and Alliance Party of Northern Ireland, with the UUP's Brian Faulkner in the position of Chief Executive. It was short-lived, collapsing on 28 May 1974 due to the Ulster Workers' Council strike, and the Troubles continued in the absence of a political settlement.