JUNIOR CONSTITUTIONAL CLUB, 101, Piccadilly, W. Established in 1887 as a political club for gentlemen professing Conservative principles. Entrance fee, £10 10s. Annual subscription: Town members, £5 5s.; country members, £3 3s.

Charles Dickens Jr. et al, Dickens Dictionary of London, c.1908 edition
(no date; based on internal evidence)