Vintage Large Royal Doulton Toby Mug. Macbeth from The Shakespearean Collection. D6667 made in1982. 8" Tall. Measures 8" in tall by 7" wide. Excellent condition free of any defects. Part of a toby collection.First performed in 1606, this Shakespearean tragedy was based on Scottish history. With the help of his wife, Macbeth plots to usurp the throne. Three witches prophesy that he will succeed, but that the heirs of his enemy Banquo will one day rule the kingdom. In a series of events, their dark predictions are fulfilled.