A gentlemen's club is a private social club of a type originally set up by men from Britain's upper classes in the 18th and succeeding centuries.
Reform Club, a prominent club in London since the early 19th century
The bar at the Savile Club, 69 Brook Street, London
A Club of Gentlemen by Joseph Highmore, c. 1730
Scene in a gentlemen's club: a cartoon of 1883 by Charles Keene
White's is a gentlemen's club in St James's, London. Founded in 1693 as a hot chocolate shop in Mayfair, it is the oldest gentleman's club in London. It moved to its current premises on St James's Street in 1778.
White's club