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CONECA (pronounced: CŌ´NECA) is a national numismatic organization devoted to the education of error and variety coin collectors. CONECA focuses on many error and variety specialties, including doubled dies, Repunched mintmarks, multiple errors, clips, double strikes, off-metals and off-centers—just to name a few. In addition to its website, CONECA publishes an educational journal, The Errorscope, which is printed and mailed to members bimonthly. CONECA offers a lending library, examination, listing and attribution services; it holds annual meetings at major conventions (referred to as Errorama) around the country.

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US Mint Info - Video Playlists

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  • US Mint Info - Video Playlists

    I'm currently working my way through B-roll list. Not just watching arbitrarily but taking in special sections to see what i recognize and understand (or don't).

    enjoy!

    https://www.youtube.com/@USMINT/playlists
    coinfacts.com - conecaonline.info - board.conecaonline.org/forum/numismatic-site-links - briansvarietycoins.com - coppercoins.com - cuds-on-coins.com - doubleddie.com - error-ref.com - franklinlover.yolasite.com - ikegroup.info -lincolncentresource.com - maddieclashes.com - money.org - ngccoin.com/price-guide/world - ngccoin.com/census - ngccoin.com/resources/counterfeit-detection - nnp.wustl.edu - pcgs.com/pop - pcgs.com/coinfacts - pcgs.com/photograde - varietyvista.com - vamworld.com

  • #2
    It's got a lot of good content. Most are listed on the official website and they link posts with info as well as embedded videos.

    Making the dies
    https://www.usmint.gov/learn/product...ess/die-making

    Making the coins
    https://www.usmint.gov/learn/product...oin-production
    Last edited by MintErrors; 06-18-2024, 02:27 AM.
    Gary Kozera
    Website: https://MintErrors.org

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    • #3
      Some of the mint videos may not fully explain the process completely. That's why I recommend the official site, it kind of augments the text with the videos, and also offers more links in each post.

      They did a pretty decent job, it's educational and videos are long enough to keep the viewers attention without being too long and boring. I did not realize that some of the Mints can have upwards of 60+ minting machines.

      I thought the mint outsourced all the blanks,but they don't outsource all. The Lincoln cent is one they do buy from outside sources. I think some of the bullion is outsourced as well. Just about everything else they do, they buy metal by the roll and create the planchets by themselves. I knew they wanted to cut down on all the caustic smoke that they did many moons ago, making their own sheets of metal. Now they can buy it by the roll and breathe fresher air.
      Gary Kozera
      Website: https://MintErrors.org

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      • #4
        Last post for a while.... this website has a PDF which lists countries that the U S Mint used to make blanks and often coins for. It's helpful if some one claims to have a potential wrong planchet coin, aka off metal coin.

        https://www.minterrornews.com/news-5..._the_mint.html

        It helped me many times, especially with my Kennedy half with a wrong planchet weight. It turns out in was a Philippines one piso planchet struck by Kennedy dies. It's a proof too. If I remember right, it weighs 9.75 grams and is a tad smaller diameter than the original Kennedy half. Plus it's a Bi-Centennial, making it even more rare.

        For foriegn planchets, it's a bit more difficult, but the website numista.com has enough information on its site. It's very helpful in situations where the potential error was done on it's own country coins, like British 10 pence on a British penny planchet for example.

        It's takes a lot of research and having an idea what countries it could have come from. Weight is a big factor in all of this. Having access to a magnet, and carefully seeing if the planchet is magnetic is also a plus, for foreign planchets.

        Happy hunting.
        Gary Kozera
        Website: https://MintErrors.org

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        • #5
          very fine additional posts MintErrors!!!
          coinfacts.com - conecaonline.info - board.conecaonline.org/forum/numismatic-site-links - briansvarietycoins.com - coppercoins.com - cuds-on-coins.com - doubleddie.com - error-ref.com - franklinlover.yolasite.com - ikegroup.info -lincolncentresource.com - maddieclashes.com - money.org - ngccoin.com/price-guide/world - ngccoin.com/census - ngccoin.com/resources/counterfeit-detection - nnp.wustl.edu - pcgs.com/pop - pcgs.com/coinfacts - pcgs.com/photograde - varietyvista.com - vamworld.com

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