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
Sherlock Holmes: The Musical revised version, entitled 'The Revenge of Sherlock Holmes' included some new material never previously performed. This new version opened to critical acclaim. "Sherlock Holmes: The Musical" was at least the second musical to be based on Sherlock Holmes, after "Baker Street" in 1965. It is also one of over 50 stage productions based on the Holmes character; see adaptations of Sherlock Holmes. The play opens after Professor Moriarty's death and Sherlock Holmes' miraculous return to life. As Dr. Watson and Mrs. Hudson describe the many eccentricities on their friend ("Sherlock Holmes"), we find that Holmes is, to Watson's disbelief, missing