Bahrain To London Concorde FIRST FLIGHT 2x 1976 FDC s

STB023  A very rare and historic pair of first day covers for the first flights for Concorde taking off at London to Bahrain (franked 21st Jan 1976) and then the return flight taking off from Bahrain to London (franked 22nd Jan 1976) - Both covers were taken on board the historic flights and have all the authenticity both on the fronts of the covers and the reverse postmarks too - Both are outstanding condition.