Postcard showing The Investiture of H.R.H. Prince Charles, Prince of Wales. Caernarvon Castle, 1st July 1969. £1.00 Caernarvon Castle stamp from 2005 50th Anniversary of Castles High Values stamp miniature sheet affixed to the front and subsequently tied with a Castles High Values Caernarvon 50th Anniversary First Day of Issue handstamp. Interesting, historical and unusual maxi card! Please note as card is over 50 years old, there are a few light corner creases and marks but overall it is in good condition.