Continuity: Holmes's pipe disappears from one shot to the next as he sees Sir Ronald Ramsgate out the door early in the film.
Continuity: (At 16:40) Holmes closes the door in a closeup shot smoking his pipe. As the camera cuts to a wide shot the pipe is gone.
Anachronisms: The popular variety-hall song "I Do Like To Be Beside The Seaside" is performed at Lady Conyngham's party. This was composed in 1907, fifteen years after the film's 1892 setting.