The Silver Box is a three-act comedy, the first play by the English writer John Galsworthy. It was originally produced in London in 1906, and attracted much attention. In New York it was first seen in 1907. In the play, the disappearance of a cigarette box (the silver box) leads to a comparison of the behaviour of the son of a prosperous politician, with that of an unemployed man, and the exposure of attitudes of different social classes.