17 March 2009 - Castles of Northern Ireland Smilers sheet with two sets of 10 labels illustrated with these scenes:
column 1: Monea Castle(F), Belfast Castle(An), Carrickfergus Castle(An), Dunluce Castle(An), Enniskillen Castle(F);
column 2: Dungiven Castle(L), Killyleagh Castle(D), Narrow Water Castle(D), Killymoon Castle(T), Gosford Castle(Ar).
Key: An = Co. Antrim, Ar = Co. Armagh, D = Co. Down, F = Co. Fermanagh, L = Co. Londonderry, T = Co Tyrone.
The 1st class Northern Ireland country stamp is new, as it is self-adhesive with eliptical perforation.