Helicopter Mail
Mail which has been officially carried by helicopter and which bears a cachet or other evidence of this fact.
Cachet
A hand-stamp on an envelope or card to denote the special circumstances in which it has been posted, eg. on
British Forces Post Office (BFPO)
Post Offices for members of the British Army and Royal Air Force. The Royal Navy uses the longer title of
Parachute Mail
Mail dropped by parachute from passing aircraft on islands or other isolated locations, and usually identifiable by cachet or other
Australian Airmail Exhibition – October 1937
In September 1931 The Airmail Society of Australia was formed to “foster and stimulate the hobby of aerophilately”. By 1934
Airgraph
Used by British forces in the Middle East during World War II. A special form was used for the message