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  2. List of United States airmail stamps - Wikipedia

    en.wikipedia.org/wiki/List_of_United_States...

    Domestic air mail became obsolete in 1975, and international air mail [2] in 1995, when the USPS began transporting First Class mail by air on a routine basis. [3] [4] All post-1977 United States stamp images are copyright of USPS. [5] Scott cataloged stamps received a "C" designation for airmail issues beginning in 1940. Designated for ...

  3. United States airmail service - Wikipedia

    en.wikipedia.org/wiki/United_States_airmail_service

    On March 19, 1976, the USPS issued a 13-cent First Class commemorative Postage Stamp (Scott #1684) honoring the 50th anniversary of U.S. commercial aviation launched with Contract Air Mail service over these two routes as well as on CAM-5 which was inaugurated next on April 6, 1926, over the 487-mile route between Pasco, Washington, and Elko ...

  4. Celebrate the Century - Wikipedia

    en.wikipedia.org/wiki/Celebrate_the_Century

    1950s to 1990s. Estimated value. About $150 for all the sheets [7] Celebrate the Century is the name of a series of postage stamps made by the United States Postal Service featuring images recalling various important events in the 20th century in the United States. [8] Ten of these sheets were issued, with each sheet depicting events of one ...

  5. Postage stamps and postal history of the Australian Antarctic ...

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

    The first commemorative stamp (as seen in the infobox) of the Australian Antarctic Territory was released on the 16th of October, 1961 to commemorate the 50th anniversary of the first Antarctic Expedition in 1911, led by the Australian scientist and explorer, Sir Douglas Mawson. This stamp features an image of Mawson on this expedition ...

  6. 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.

  7. Coins and postage stamps of Sealand - Wikipedia

    en.wikipedia.org/wiki/Coins_and_postage_stamps...

    Sealand began commissioning coins in 1972. The first to be minted was a SX$10 coin with a mintage of 2000. More coins were minted in 1975 and 1977, introducing the SX$20 and SX$100 coins. The SX$10 was minted in 925‰ fine silver, the SX$20 was minted in silver, and the SX$100 was minted in 900‰ fine gold . In 1991 the "Sealand rebel ...

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