The National Collectors Association of Die Doubling (NCADD) is a national organization for the education and enjoyment of Die Doubling errors on all denominations of coins. 

NCADD was founded in late 1998 by Billy G. Crawford and John W. Bordner.  NCADD has rapidly grown with nearly 400 members throughout North America.  The clubs bi-monthly newsletter The Hub is fantastic, giving articles on new discoveries, research, World Coin Doubled Dies and many other aspects of the hobby. members are from nearly every region of the United States from all walks of life.  Current members include schoolteachers, servicemen, retirees, public workers, coin dealers, factory workers in fact there are just too many to mention here!  NCADD feels that ALL members are important to our success and recognizes those who give back to the hobby, regardless of expertise or age.

When you become a member of NCADD you will receive the clubs Bi-Monthly Newsletter The Hub, discounted attribution services and direct contact with the leading experts in the variety field with numerous other benefits.