Egypt: No Air Letter Service to France in 1946

This is Egypt #1 used from CAIRO 13 OC 46 to Paris, France.

Before the 1952 Brussels UPU congress, at which aerogrammes were accepted as a standard UPU service (regulation came into effect on July 1, 1953), the acceptance of air letters at reduced rates in international mail depended on bilateral agreements between postal authorities.

Sears in his book "The Airmails of Egypt" (1990, p. 153), only writes: "Initially air letters could only be sent to those countries where the Airgraph service was used."

This air letter was uprated to a total postage of 52 Mills, which was the ordinary air mail letter rate to France in October 1946.