Le Associazioni nel mondo
AICC – Associazione Italiana Collezionisti Cavatappi. 1988.
CFTB – Club Français du Tire-Bouchon. 1995.
VKF – Verein Korkenzieher Freunde. 1996.
ICCA – International Correspondence of Corkscrew Addicts. 1974.
CCCC – The Canadian Corkscrew Collectors Club. 1981.
JFO – Just For Openers. 1979.
ABCDE – Association of British Corkscrew Devotees and Enthusiasts. 1991.
HS – Helix Scandinavica. 1994.
GGCC – Golden Gate Corkscrew Collectors. 1999.
FDSP – Freunde der Stoppelzieher Seit 1998. 2006
