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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.

CONECA was formed through a merger of CONE and NECA in early 1983. To learn more about the fascinating HISTORY OF THE ERROR HOBBY and THE HISTORY OF CONECA, we encourage you to visit us our main site Here

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New Member and a War Nickel question

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  • New Member and a War Nickel question

    Thanks for my membership invitation. I actually started coin collecting with Wheat Cents at 10 yrs of age. That was 66 yrs ago. I do have other denominations of coins in my collection that includes Jefferson Nickels. One of those Jeffersons has recently raised some questions that I need help with. I feel like I understand the minting process, but evidently I don't. I have a beautiful 1944 P War Nickel that seems to be 1944-P DDO-001, but I have been told there is something here to do with the Master Die that I can't understand. Someone told me it can not be called a DDO because of the Master Die thing. I will post some photos for edification. My coin does differ in some ways, it has no clash marks and it has an obverse die crack. If possible can someone tell me where to get information regarding this Master Die thing.
    Obv (1).jpg
    Attached Files

  • #2
    The more valuable doubled dies are those struck with a hub doubled working die. Technically, a Doubled Master Die is indeed a hub doubled die. However, the Master die is used to make the Working dies, of which there are many. That means that any doubling on the master die will be seen on ALL the working dies it produces. Those working dies are used to strike the coins, so now there are millions and millions of coins with the doubling on it. It then becomes so numerous, that it loses any premium normally associated with a doubled die produced by one working die.
    It does get confusing at times, but it gets easier once you fully understand the process.
    Bob Piazza
    Lincoln Cent Attributer