Article 18: The United Kingdom Castle High Value Definitives
Belowis a 5 Pounds Windsor Castle stamp on cover with two Machin definitives. Quick links for these specimens on cover: 1 Pound Carrickfergus Castle / 1.50 Pounds Caernarfon Castle / 2 Pounds Edinburgh Castle / 3 Pounds Carrickfergus Castle / 5 Pounds Windsor Castle |