World Heritage Sites
Blenheim Palace Gardens, England.
Card: PhotoPrecision, St Ives no PT10106 - Lower Water terrace and lake (postally used 1972)
Stamp: 1983 British Gardens 28p & 2p definitive*
Postmark: Blenheim Palace, Woodstock, Oxford.
* Royal Mail insists on full payment at 1st class rates with all the stamps on the picture side. Although this is not in line with FIP rules for exhibiting maximum cards, the stamp, card and postmark still have the required concordance