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.

Thick and heavy cent planchet

Collapse
X
Collapse
 
  • Page of 1
  • Filter
  • Time
  • Show
Clear All
new posts
Previous template Next
  • #1

    Thick and heavy cent planchet

    A friend has a 1983-D Lincoln cent that weighs 2.8 grams. He says it is thicker than normal. I examined it and it is a copper plated zinc planchet. Any ideas? Foreign planchet? The correct weight would be 2.5 grams. Is this within tolerance?
    CONECA 20th Century Die Variety Attributer
    Tags: None
  • #2
    2.8 grams is out of tolerance. The most prosaic explanation is that it was struck on a zinc planchet punched out of rolled-thick stock. I can't rule out a foreign planchet or foreign stock, but I always opt for the most mundane explanation. Several other heavy copper-plated zinc cents are known, some much heavier than this. At least one is a proof.
    Mike Diamond. Error coin writer and researcher.

    Comment

    Previous template Next
    Working...
    X