An airmail stamp is a postage stamp intended to pay either an airmail fee that is charged in addition to the surface rate, or the full airmail rate, for a piece of mail to be transported by air.
Airmail stamps should not be confused with airmail etiquettes, which are affixed to mail as an instruction to the postal authority that the mail should be transmitted by air.
Famous quotes containing the word stamp:
“The man whose action habitually bears the stamp of his mind is a genius, but the greatest genius is not always equal to himself, or he would cease to be human.”
—Honoré De Balzac (1799–1850)