1924 'AIR MAIL GENERAL POST OFFICE' CIRCULAR ISSUED JUNE 1924. Four page General Post Office circular issued June 1924, some creasing, concerning 'SUMMMER SERVICES 1924' and detailing 'Condition of posting for the letter air mails, inland letter air mails, Foreign and Imperial letter air mails, air parcel services to Holland Germany Denmark Norway and Sweden, air parcel services to Paris and Miscellaneous'. Much useful information for the air mail collector. (Ref 144213).
