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  2. Die proof (philately) - Wikipedia

    en.wikipedia.org/wiki/Die_proof_(philately)

    Die proof for the United States Jefferson issue of 1861 Approved proofs from Waterlow and Sons printers for a Bolivian stamp issue of 1943. (Subsequently punched for security purposes.) In philately a Die Proof is a printed image pulled directly from the master die for an engraved stamp.

  3. Progressive stamping - Wikipedia

    en.wikipedia.org/wiki/Progressive_stamping

    Progressive Die is a metalworking method that can encompass punching, coining, bending and several other ways of modifying metal raw material, combined with an automatic feeding system. The feeding system pushes a strip of metal (as it unrolls from a coil) through all of the stations of a progressive stamping die. [ 1 ]

  4. Coining (mint) - Wikipedia

    en.wikipedia.org/wiki/Coining_(mint)

    The master hub is then used to make only a few master dies via hubbing, which involves pressing the master hub into a steel blank to impress the image into the die. The master die is then used to form as many working hubs as needed through the same process, and then the working hubs are put through the same process to form the working dies ...

  5. List of people on the postage stamps of the United States

    en.wikipedia.org/wiki/List_of_people_on_the...

    Through the years, a person has had to be deceased before their face appeared on a stamp, [1] though the USPS will document that a stamp has commemorated people, living or deceased, without including their actual face on the stamp – such as the image of a yellow submarine from the 1969 eponymous album cover shown on the 1999 stamp [2 ...

  6. Presidents of the United States on U.S. postage stamps

    en.wikipedia.org/wiki/Presidents_of_the_United...

    On July 1, 1851, the U.S. Post Office issued a 3-cent postage stamp. Because of die recuts, double transfers from die to plate and different paper used for its printing, this issue comes in numerous varieties. The authoritative book on the issue, 'Classic U.S. Stamps 1845–1869' was written by Carroll Chase, published in 1962.

  7. Scott catalogue - Wikipedia

    en.wikipedia.org/wiki/Scott_catalogue

    Scans from Dr. Meng's collection began appearing in volume 4 of the 2002 catalog. Together with generous access by many other collectors, Meng's cooperation has resulted in creation of scanned images of all but about 1300 stamps by Scott as of 2024 catalogue series. About 120 are specialized stamps from the US Specialized Catalogue.

  8. AOL Mail - AOL Help

    help.aol.com/products/aol-webmail

    Get answers to your AOL Mail, login, Desktop Gold, AOL app, password and subscription questions. Find the support options to contact customer care by email, chat, or phone number.

  9. Die-deterioration doubling - Wikipedia

    en.wikipedia.org/wiki/Die-deterioration_doubling

    When a die begins to show evidence of wear, a mint technician will polish the die and reuse it. However, the die is still rapidly deteriorating, and polishing it cannot avoid the problem of wear. So, after many thousand coins in rapid succession, the wear on the die has gotten so bad that it appears as Die Deterioration Doubling.

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