DC & Territories Quarter
Doubled Die Book
|Published: January 2016
|by James Wiles, Ph.D.
The CONECA die varieties numbering system is proprietary to the
Combined Organizations of Numismatic Error Collectors of America
and is used under license issued by CONECA.
Select the date and mint of your choice.
If you think you have an unlisted doubled die or an unpictured
stage of a doubled die,
I would love the opportunity to examine the coin and photograph it for inclusion in the next edition.
Please send an email for instructions on how to have your coin attributed.
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Copyright James Wiles, 2020