آئروگرام

Also known as aerogramme, aérogramme, air letter

thumb|GB Christmas Aerogram (one of two issued in 1967) An aerogram, aerogramme, aérogramme, air letter or airletter is a thin lightweight piece of foldable and gummed paper for writing a letter for transit via airmail, in which the letter and envelope are one and the same. Most postal administrations forbid including items inside these light letters, which are usually sent abroad at a preferential rate, and enclosing items may cause the mail to go at the higher letter rate.