Centenary of the Magic Circle - 5 novelty stamps (see website link for details). The 1st class stamp was also issued in a Smilers Sheet - this cover has a single Smilers stamp and label. The Stephenson Way, London postmark shows a magician. Each cover has a different stamp from the sheet.
The Norvic fdc shows a magician and his computer, which happens to have our shop on its screen!
Also available: covers with 5 Smilers stamps; of 4 covers bearing ALL the Smilers stamps on the sheet; covers with the set of 5 stamps; and mint stamps and sheets.