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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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Die Mark Reverse?

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  • JoeBlack88
    • Jan 2026
    • 3

    Die Mark Reverse?

    Hello all. My name is Joe Black. I have been collecting coins and currency for 6 plus years.
    I bought a coin lot through an estate sale when I first started collecting. I was confused when my wife came in with a penny collection as well. Every time I looked at the Pennie’s something felt off. So I got a scope. Any ways with permission I would love upload a couple pictures of the reverse on one of my 1969S Reverse examples.
    what I believe to be a beautiful die mark/X. Thank you. Hopefully I didn’t say too much. I have what I believe to be confirmed varieties on several years. Thanks for your time. Sorry if I did not do this correctly.
    You do not have permission to view this gallery.
    This gallery has 2 photos.
  • MintErrors
    Minterrors.org
    • Jun 2015
    • 3971

    #2
    In my opinion, introductions are fine in this section but, the Coneca Staff may end up moving this post due to the name of the post.

    Working dies which strike the coins go through a few series of maintenance throughout the working dies life span. This is in hope that each working die might make it close to one million strikes before being retired.

    If i am seeing things correctly, the lines on the field (flat area on the coin) are slightly raised. This is known as an abraded coin. They are scratches from some type of tool which when used on the working die scratched its surface. The result is these scratches are incused (sunk into) the working die. When the dies squeeze a blank into a coin, anything that is sunk into the die, is raised onto the coin.

    Some refer this type of coin as die scratches. There are a lot of these seen from the 1940s through the 1970s, they were very common. You can search on your favorite web broswer for a condition which was called floating roof. Its basically an over zealous worker using emery cloth, sandpaper or other tool that removed some of the design elements of the coin.

    Again, its very common condition. I found some very dramatic ones where most of the obverse and reverse were covered in scratches. I only kept these since they looked cool. In my opinion, collector interest is very low.

    Lastly, taking photographs of a monitor makes some photos look very pixelated and difficult to assess the photo. I have a post in my signature block on how to take photos using a cell phone. It might help in the future. There is also a post on which type of forum to use for the type of coin you want to post.

    Happy hunting.
    Last edited by MintErrors; 01-08-2026, 04:04 AM.


    My signature block :

    Three helpful posts:
    How to take better photos with a Cellphone:
    https://board.conecaonline.org/forum...th-a-cellphone

    RPM or DDO question? Help us help YOU:
    https://board.conecaonline.org/forum...lp-us-help-you

    What Forum to post your coin questions:
    https://board.conecaonline.org/forum...t-forum-to-use

    Gary Kozera
    Website: https://MintErrors.org

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