GREAT BRITAIN 1988 HIGH VALUE CASTLES FIRST DAY COVER, CAERNARFON
High value Castle definitives, printed by Harrison on fluorescent coated paper with PVAD gum, on Benham illustrated cover with special CAERNARFON handstamp dated 18th Oct 1988, the first day of issue. SG1410-13; SC1230-33; BC1045e
