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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

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!

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Directory Topics Posts Last Post
Education
Helpful information on Errors and Varieties will be posted here.
Topics: 13 Posts: 62
Last Post: What is a Mint Error?
13 62
Jamez
What is a Mint Error?
by Jamez
09-15-2024, 10:06 PM
Sub-Forums::
General Information (4/4)
Error Coin Information (2/19)
Variety Coin Information (6/37)
 
CONECA Announcements
Updates on club activities.
Topics: 70 Posts: 169
Last Post: CONECA Table - Milan, Illinois - April 12th, 2026
70 169
eaxtellcoin
CONECA Table - Milan, Illinois - April 12th, 2026
by eaxtellcoin
04-13-2026, 02:27 PM
 
New Members Introduce Yourself
Topics: 806 Posts: 2,648
Last Post: New member
806 2,648
MintErrors
New member
by MintErrors
04-26-2026, 06:46 PM
 
General Forum
Discussion and analysis of all types of non-standard coinage.
Topics: 2,288 Posts: 8,516
Last Post: 1868 3CN with strange markings...
2,288 8,516
petrpanman
1868 3CN with strange markings...
by petrpanman
05-07-2026, 01:35 PM
 
Die Variety Forum
Discussion and analysis of die varieties
Topics: 3,514 Posts: 15,468
Last Post: 1917 25C variety discovery
3,514 15,468
plategroup
1917 25C variety discovery
by plategroup
05-07-2026, 03:22 PM
Sub-Forums::
Die Variety Image Gallery (316/1,172)
 
Mint Error Forum
Discussion and analysis of planchet and striking errors.
Topics: 3,368 Posts: 13,591
Last Post: Crazy Coin
3,368 13,591
MintErrors
Crazy Coin
by MintErrors
05-05-2026, 11:11 PM
Sub-Forums::
Mint Error Image Gallery (378/1,246)
 
Foreign Errors and Varieties
Topics: 207 Posts: 711
Last Post: Honduran 1 Lempira wrong paper error
207 711
kurtrr
Honduran 1 Lempira wrong paper error
by kurtrr
03-09-2026, 08:31 PM
 
Canadian Errors and Varieties
Topics: 65 Posts: 253
Last Post: Defective Canadian Cent Error
65 253
dpapa3rr0r
Defective Canadian Cent Error
by dpapa3rr0r
03-21-2026, 12:05 AM
 
Numismatic SIte Links
Topics: 16 Posts: 16
Last Post: Numismatic Site Links
16 16
Peter
Numismatic Site Links
by Peter
04-30-2021, 10:27 PM
 
 

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There are currently 794 users online. 3 members and 791 guests.

Most users ever online was 13,229 at 03:13 PM on 04-16-2025.

CONECA Error-Variety Coin Forum Statistics

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Topics: 12,529   Posts: 47,863   Members: 3,351   Active Members: 63
Welcome to our newest member, Scoopy.

Latest Topics

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  • petrpanman
    1868 3CN with strange markings...
    by petrpanman
    Anyone have an idea what caused these marks? The A in AMERICA and the U in UNITED also look strange? See pics attached...
    05-07-2026, 08:57 AM
  • plategroup
    1917 25C variety discovery
    by plategroup
    I found a 1917 quarter with some very interesting features that appear beneath the numbers of the date. These features are raised, integrated seamlessly...
    05-07-2026, 12:59 AM
  • Yamhillgirl
    Crazy Coin
    by Yamhillgirl
    Came across this 1955D Lincoln Wheat cent and wanted to know if this is a mint error coin.
    There is a clip that looks like reeding, die crack across...
    You do not have permission to view this gallery.
    This gallery has 3 photos.
    05-05-2026, 04:38 AM
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  • plategroup
    1917 25C variety discovery
    by plategroup
    I found a 1917 quarter with some very interesting features that appear beneath the numbers of the date. These features are raised, integrated seamlessly...
    05-07-2026, 12:59 AM
  • petrpanman
    1868 3CN with strange markings...
    by petrpanman
    Anyone have an idea what caused these marks? The A in AMERICA and the U in UNITED also look strange? See pics attached...
    05-07-2026, 08:57 AM
  • Yamhillgirl
    Crazy Coin
    by Yamhillgirl
    Came across this 1955D Lincoln Wheat cent and wanted to know if this is a mint error coin.
    There is a clip that looks like reeding, die crack across...
    You do not have permission to view this gallery.
    This gallery has 3 photos.
    05-05-2026, 04:38 AM
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