Die Variety Forum - CONECA Error-Variety Coin Forum

Welcome!

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!

Forums	Topics	Posts	Last Post
Die Variety Image Gallery Photos taken by our members. Topics: 312 Posts: 1,156 Last Post: 1952 D Franklin half	312	1,156	1952 D Franklin half by N-8194 11-10-2025, 08:14 PM

Topics	Statistics	Last Post
Sticky: RPM or DDO question ? HELP US help you. by MintErrors Started by MintErrors, 01-28-2025, 05:39 AM	0 responses 249 views 3 reactions	Last Post by MintErrors 01-28-2025, 05:39 AM
Sticky: 1883 Liberty RPD by sumdunce Started by sumdunce, 02-12-2022, 09:56 AM	13 responses 182 views 1 reaction	Last Post by MintErrors 12-13-2024, 02:14 PM
Closed, Sticky: Forum Protocols by jcuve Started by jcuve, 04-25-2021, 03:57 PM	0 responses 206 views 3 reactions	Last Post by jcuve 04-25-2021, 03:57 PM
Closed, Sticky: RPMs by jcuve Started by jcuve, 04-25-2021, 02:26 PM	4 responses 298 views 2 reactions	Last Post by jcuve 04-25-2021, 02:40 PM
Closed, Sticky: Machine doubling (aka mechanical or strike doubling) by jcuve Started by jcuve, 04-25-2021, 02:02 AM	6 responses 325 views 2 reactions	Last Post by jcuve 04-25-2021, 02:55 AM
Closed, Sticky: Other forms of doubling: by jcuve Started by jcuve, 04-25-2021, 02:38 AM	3 responses 195 views 1 reaction	Last Post by jcuve 04-25-2021, 02:54 AM
1970 P quarter ddr-002 ? by Hiyosilver Started by Hiyosilver, 12-01-2025, 05:26 PM	2 responses 28 views 0 reactions	Last Post by Hiyosilver 12-01-2025, 09:57 PM
1972 Lincoln Cent DDO-010? by N8Brown Started by N8Brown, 11-19-2025, 11:32 AM	2 responses 40 views 0 reactions	Last Post by N8Brown 11-28-2025, 09:52 PM
1962 LINCOLN MEMORIAL PROOF CENT DDO? by rbroederer Started by rbroederer, 07-02-2023, 04:04 PM	10 responses 115 views 1 reaction	Last Post by eaxtellcoin 11-28-2025, 05:15 PM
2024-D Lincoln Cent-VDDR-001-R-VIII? by Steve337 Started by Steve337, 11-21-2025, 05:07 PM	2 responses 37 views 0 reactions	Last Post by Steve337 11-28-2025, 10:48 AM
2004-D 10c RPM? by RGuined Started by RGuined, 07-21-2025, 09:57 PM	4 responses 60 views 0 reactions	Last Post by RGuined 11-27-2025, 11:55 PM
1943 - S Mercury Dime, Trumpet Tail Mintmark Variety? by SunShinyJess Started by SunShinyJess, 11-15-2025, 06:18 PM	1 response 31 views 0 reactions	Last Post by eaxtellcoin 11-27-2025, 11:49 AM
1935-D/D RPM#002 PCGS MS64 - In Great Collections - ends 11/19/2025 by eaxtellcoin Started by eaxtellcoin, 11-13-2025, 06:08 PM	0 responses 19 views 0 reactions	Last Post by eaxtellcoin 11-13-2025, 06:08 PM
2000 MASSACHUSETTS STATE QUARTER DDO and DDR? by DCoop1968 Started by DCoop1968, 11-12-2025, 07:18 PM	0 responses 31 views 0 reactions	Last Post by DCoop1968 11-12-2025, 07:18 PM
1999 Penny Mule Clash? by DCoop1968 Started by DCoop1968, 11-12-2025, 04:45 PM	0 responses 13 views 0 reactions	Last Post by DCoop1968 11-12-2025, 04:45 PM
1987-P 10c Possible DDR? by Mikaren99 Started by Mikaren99, 10-19-2025, 09:03 AM	1 response 43 views 0 reactions	Last Post by MintErrors 10-20-2025, 08:26 PM

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