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  2. Postage stamp gum - Wikipedia

    en.wikipedia.org/wiki/Postage_stamp_gum

    Postage stamp gum. In philately, gum is the substance applied to the back of a stamp to enable it to adhere to a letter or other mailed item. The term is generic, and applies both to traditional types such as gum arabic and to synthetic modern formulations. Gum is a matter of high importance in philately.

  3. Self-adhesive stamp - Wikipedia

    en.wikipedia.org/wiki/Self-adhesive_stamp

    A self-adhesive stamp is a postage stamp with a pressure-sensitive adhesive that does not require moistening in order to adhere to paper. They are usually issued on a removable backing paper. Stamp collectors have criticized the format, because the rubber-based adhesive used tends to yellow the stamps progressively.

  4. Postage stamps and postal history of the United States

    en.wikipedia.org/wiki/Postage_stamps_and_postal...

    Stampless letters, paid for by the receiver, and private postal systems, were gradually phased out after the introduction of adhesive postage stamps, first issued by the U.S. government post office July 1, 1847, in the denominations of five and ten cents, with the use of stamps made mandatory in 1855.

  5. Postage stamp reuse - Wikipedia

    en.wikipedia.org/wiki/Postage_stamp_reuse

    Reuse. A postage stamp is a small piece of paper attached to mail that indicates that the postage (the cost of sending the mail) has been paid. Because stamps are sent on most mail, the stamp on a received item can be removed and placed on a different piece of mail to be sent, thus reusing the stamp without paying the proper postage.

  6. Cancellation (mail) - Wikipedia

    en.wikipedia.org/wiki/Cancellation_(mail)

    Cancellation (mail) A cancellation (or cancel for short; French: oblitération) is a postal marking applied on a postage stamp or postal stationery to deface the stamp and to prevent its reuse. Cancellations come in a huge variety of designs, shapes, sizes, and colors. Modern cancellations commonly include the date and post office location ...

  7. Penny Black - Wikipedia

    en.wikipedia.org/wiki/Penny_Black

    The Penny Black was the world's first adhesive postage stamp used in a public postal system. It was first issued in the United Kingdom on 1 May 1840 but was not valid for use until 6 May. The stamp features a profile of Queen Victoria . In 1837, British postal rates were high, complex and anomalous. To simplify matters, Sir Rowland Hill ...

  8. Postage due - Wikipedia

    en.wikipedia.org/wiki/Postage_due

    Postage due stamps (or "labels", to clarify that they have no value of their own) are not always affixed to individual letters; in the case of business mail, the total due might be summed, and the appropriate stamps added to the top letter in a bundle, or to a bundle's wrapper. The labels have also been used to collect money for other purposes ...

  9. Postage stamp - Wikipedia

    en.wikipedia.org/wiki/Postage_stamp

    3. Denomination. 4. Country name. A postage stamp is a small piece of paper issued by a post office, postal administration, or other authorized vendors to customers who pay postage (the cost involved in moving, insuring, or registering mail). Then the stamp is affixed to the face or address-side of any item of mail —an envelope or other ...