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


No announcement yet.

Help - Strike clips

  • Filter
  • Time
  • Show
Clear All
new posts

  • Help - Strike clips

    Can anyone give me a tip to where I can find a detailed description on
    how Strike Clips occur? Have read a couple of things about it, but dont
    think what I read was accurate. Am i little unsure.

  • #2
    I've written two articles in Errorscope on them, although I'd have to dig them out to give you the exact reference. In general, a strike clip occurs when a coin is sheared or torn apart during a strike. There are several ways this can happen.

    1. An off-center planchet can get trapped between the hammer die and a collar frozen in the "up" position. The planchet is sheared in two, producing a strike-clipped planchet and an elliptical strike clip cent. The same event can involve an already-struck coin.

    2. An off-center planchet or coin can have the "dangling" portion pinched off during a uniface strike, if the miniminum die clearance is close to zero and/or striking pressure is unusually high.

    3. If a saddle strike fails to buckle, one of the two tandem off-center strikes will be driven beneath the unstruck middle portion as it expands. The stresses can cause this off-center strike to be torn off.

    There may be one or two other scenarios that I'm forgetting about.

    Here's an elliptical strike clip:


    These are always mislabeled by the grading services (and most dealers) as elliptical clips. This dealer is a refreshing exception.
    Mike Diamond. Error coin writer and researcher.


    • #3
      Ok, thank you very much.