The Clue
Many of the Sherlock stories have imagery in common, for example, the clue that seems to represent the case. In The Adventures of Silver Blaze this clue is the silver cravat that the dead man is holding, In The Adventure of the Gloria Scott it is the J.A tattoo on the arm. These clues signify something that the audience cannot yet see but that Sherlock will soon unravel when he makes the crime, the the criminal, and the motive clear.
The Torn Letter in the Adventures of the Reigate Squire
Often in the Sherlock stories a clue is the key to solving the whole case, yet a small part of it missing. To solve the case the other part must be found, yet the police and the reader both has little idea where to find it. Here Sherlock shows his true detection skills, as he takes an incomplete object, such as the torn letter, and deduces the whole of it on what he has available.
Holmes' pipe
When making his decisions and deductions Holmes often sits as if in a stupor with his pipe, smoking as he solves the mysteries brought to him. The Pipe has become a famous image in relation to the Sherlock stories and it play a large role in the marketing aspect of all of the books due to this association with Holmes.
221B Baker Street, London
Baker Street is the place where the desperate of London come in order to have their problems solved by the famed Sherlock Holmes. It becomes, within the stories, the image of a haven for these people, a lab, an office, even a library, where Sherlock conducts the mental aspects of his detective work. Although it was also Watson's Holmes in some of the stories, even he seems to see an aspect of Holmes that surrounds and fills the place.
