AEROGRAM
Aerogram
An Aerogram, AĆ©rogramme or Air Letter 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 enclosures in these light letters, which are usually sent abroad at a preferential rate. Printed warnings existed to say that an enclosure would cause the mail to go at the higher letter rate.The above text is a snippet from Wikipedia: Aerogram
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aerogram
Noun
- A wireless message.
- A telegram whose transmission included at least one segment sent via airplane.
- A thin piece of foldable and gummed paper for writing a letter and serving as its own envelope for transit via airmail.
- A pneumogram.
The above text is a snippet from Wiktionary: aerogram
and as such is available under the Creative Commons Attribution/Share-Alike License.