6 May 2010 Accession of George V miniature sheet on Royal Mail first day cover.
The London 2010 Festival of Stamps is a year long celebration of stamps, stamp design and postal heritage. The Festival also marks the centenary of the accession of George V, the philatelist king, and the first stamp and miniature sheet issued for the Festival marks this anniversary.
For the opening of the show, the Accession Centenary MS issued on 6 May was overprinted BUSINESS DESIGN CENTRE, LONDON 8 - 15 MAY 2010 at top right.
The Overprinted sheet on official Royal Mail fdc for 8 May, cancelled with the International Festival of Stamps, Islington, postmark depicting the festival venue.