The Sherlock Holmes its headquarters on the purported site of 221B Baker Street), decided to create an exhibition based on the fictional detective Sherlock Holmes. Four Holmes enthusiasts (with the support of the family of Sir Arthur Conan Doyle) designed and planned the exhibition, collecting materials (many of them donated) for display, including a Persian slipper to hold Holmes’s tobacco, a gasogene for Dr Watson's soda, and a jack-knife for Holmes to pin his unanswered correspondence to the mantelpiece with. In Abbey House on Baker Street Holmes' sitting room at 221B Baker Street was created. Each day crumpets were supplied by a local
Canon of Sherlock Holmes Jack Tracy; "The Final Adventures of Sherlock Holmes", edited by Peter Haining; "The Uncollected Sherlock Holmes", edited by Richard Lancelyn Green; and the final volume of Leslie S. Klinger's "Sherlock Holmes Reference Library" titled "The Apocrypha of Sherlock Holmes". These works, each with slightly different contents, discussed several titles and their place in the canon. In addition to the canon, Conan Doyle wrote (occasionally with a co-writer) a number of vignettes, play adaptations and essays involving Holmes, and two short stories in which Holmes makes a possible cameo appearance. Most were published in various places during his lifetime; another has