British Architecture -Historic Buildings – Stamps of Great Britain 1978.
The Royal Mail issued a set of four stamps and a miniature sheet on British Architecture Historic Buildings. All the buildings were listed as World Heritage Sites. The stamps were issued on 01 Mar 1978. A FDC is listed.
9p- The Tower of London 10.5p- Holyroodhouse
11p- Caernarvon Castle 13p – Hampton Court Palace.