Largest collection of Pokemon memorabilia

The largest collection of Pokémon memorabilia belongs to Lisa
Courtney (UK), with 14,410 different items as of 14 October 2010,
which she has been collecting for over 14 years. Her collection
includes items from the UK, USA, France and of course Japan. She
has made several trips to Japan for the specific purpose of
collecting Pokemon merchandise, each time sending between 8-12
boxes full back to the UK. Part of the collection (including her
GWR certificate) has been displayed at the Museum of Hertford as
part of an exhibition on popular culture.