Newspaper. The Observer, September 10th, 1911. Folded to wedge shape 11x25.5x1cm, for carriage by aeroplane to commemorate the coronation of King Edward VII, 1911 and inaugurate air mail services. Addresse card adhered, printed in violet: 'AD Coronation 1911. First U.K. Aerial Post. By sanction of HM Postmaster General. For conveyance by AEROPLANE from LONDON to WINDSOR ...' / [to addressee] C.C. Turner, 87, South Croxpat Rd., Dulwich, S.E. [London]. Label 9x14cm, image 8.5x6.2cm, address space stamped King George one penny red and franked. Image shows early biplane flying over Windsor Castle