Great Britain 1997 £1.50 - £5 "Castles" (Enschede printing), SG1993/6.
Superb Post Office fresh unmounted mint, with full original gum, set of four.
One of the most popular of modern QEII stamp issues featuring the most famous castles across the United Kingdom:
£1.50 - Caernarfon Castle, Wales
£2 - Edinburgh Castle, Scotland
£3 - Carrickfergus Castle, Northern Ireland
£5 - Windsor Castle, England