1st Apr 1998 RAF Fairford 80th Anniversary Special Postmark on Full Set of 5 British Aircraft Designers Stamps. The Royal Air Force 1918 - 1998. Celebrating 80 Years of the RAF. The Royal International Air Tattoo 1998. The Oficial Public Celebration of the 80th Anniversary. Personally Signed by Brian Trubshaw CBE, MVO, FRAeS, Aviation Consultant,Joined Vickers - Armstrong Aircraft ltd as Experimental Test pilot 1950,Deputy Chief Test pilot 1953,Chief Test Pilot 1960, Director of Flight Test 1966 - 80 BAC, Concorde maiden UK flight 1969. Division Director and General Manager (Filton)Civil Aircraft Div BAe plc. Certified Copy No of 18 of 20.