Welcome!

Log in or register to take part.

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

If you're not a member and would like to join see our Membership Application

We thank everybody who has helped make CONECA the great success that it is today!

Register Now

Announcement

Collapse
No announcement yet.

new DDR 1965 Roosevelt Dime

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • new DDR 1965 Roosevelt Dime

    New member. Retired cardiologist (hartdoc). Found this DDR on oak branches of 1965 Roosevelt Dime. Can find it reported anywhere. Anyone's thoughts? 1965 Roosevelt Dime DDR.jpeg 1965 Roosevelt Dime DDR.jpeg

  • #2
    That appears to be machine doubling (MD), not hub doubling. Notice that it is also visible on the first U of UNUM.
    Bob Piazza
    Lincoln Cent Attributer

    Comment


    • #3
      Thank you for your assessment.

      Comment


      • #4
        Welcome Doc!!

        Comment


        • #5
          I hope I don't step on people's post toes here, I am assuming the Doc understands what machine doubling is and how it differs from a doubled die?
          Gary Kozera
          Website: https://MintErrors.org

          Comment


          • #6
            Thank you all for your very helpful comments. I think I finally understand how to identify mechanical/machine/strike doubling and differentiating it from die doubling. The link is very helpful.

            Comment

            Working...
            X