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  2. 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.

  3. Machin series - Wikipedia

    en.wikipedia.org/wiki/Machin_series

    The Machin series / ˈmeɪtʃɪn / of postage stamps was the main definitive stamp series in the United Kingdom for most of the reign of Elizabeth II, from 1967 until her death in 2022. Introduced on 5 June 1967, it was the second series of her reign, replacing the Wilding series. The last issue was on 4 April 2022, four months before the Queen ...

  4. Postage stamps and postal history of the United States

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

    Benjamin Franklin — George Washington The First U.S. Postage Stamps, issued 1847. The first stamp issues were authorized by an act of Congress and approved on March 3, 1847.[ 20] The earliest known use of the Franklin 5¢ is July 7, 1847, while the earliest known use of the Washington 10¢ is July 2, 1847.

  5. List of Machin stamps - Wikipedia

    en.wikipedia.org/wiki/List_of_Machin_stamps

    All barcoded stamps are self-adhesive. Existing definitive stamps issued from 15 February 1971 to 31 January 2022 remain valid until 31 January 2023: since 31 March 2022, they can be indefinitely exchanged for the barcoded series. [18] The 2022 issue was the last release in the Machin series prior to the death of Elizabeth II.

  6. Nature of America - Wikipedia

    en.wikipedia.org/wiki/Nature_of_America

    Nature of America is a series of twelve self-adhesive stamp sheets that the United States Postal Service released annually between 1999 and 2010 starting with the Sonoran Desert sheet [3] [5] and ending with the Hawaiian Rain Forest Sheet. [6] [7] Like the Celebrate the Century stamp series, these were printed on large sheets 9"x8¾" (233mm x ...

  7. Adhesive remover - Wikipedia

    en.wikipedia.org/wiki/Adhesive_remover

    Adhesive removers are often based on organic solvents, which can dissolve or soften many adhesive polymers that do not dissolve in water. They may also contain a gelling agent, increasing viscosity so that the product sticks to the area to be treated rather than running off. Common solvents used include D - limonene, aliphatic alkanes, and ...

  8. Postage is going up again. You should care, even if you don’t ...

    www.aol.com/finance/postage-going-again-care...

    Postage stamps, though, took quite awhile longer to make an appearance. “Alexander M. Greig’s City Despatch Post, a private New York City carrier, issued the first adhesive stamps in the ...

  9. 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.

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