The EFOCC was founded in 1986 in recognition of the fact that collecting printing varieties had become its own specialty, not just adding odd stamps to a normal collection. The international membership is made up of collectors who seek EFOs to make their country album more interesting, and collectors who enjoy studying production methods and the philatelic material that results when it doesn’t work properly.

EFOCC has a 28-page full-color quarterly, The EFO Collector, with feature articles, new discoveries, member information, free member ads, club activities, and an EFO auction in each issue. The EFOC and the broad and deep website, www.efocc.org, are managed by club Vice President Cemil Betanov, from New Hyde Park, NY.

Membership is $20 a year in the U.S. An application form is on the Society website.