provision of airports, mechanics and pilots is not without problems. The opinion of “Iran” was that the Ministry should proceed with these plans forthwith, and added that an aircraft equipped with a cannon or machine gun is effective to disperse villains and thieves. 1 June 1922 International Air Convention Fourteen states having on June 1st deposed the act of ratification of the Convention for the Regulation of Air Navigation with the French Minister of Foreign Affairs, the Convention came into force with respect to these states on July 11th. The ratifying states are the following: Belgium Bolivia British Empire including Canada, Australia, New Zealand, South Africa and India France Greece Japan Portugal Serb-Croat-Slovene Kingdom Siam. In addition the following states, which were not signatories to the Convention originally, have adhered to it: Persia Peru Liberia Nicaragua. Consequently the International Air Convention is now in force in eighteen sovereign states or dominions. <Aviation Week 21 August 1922> 12 June 1922 The earliest known date for public airmail from a Persian post office is 12 June 1922. Postage 1 Kran + airmail fee 2 Kran. Mail travelled overland Teheran - Hamadan – Khanaquin, and then by rail to Baghdad.
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