Details competition no 439

In which painting by which painter can you find this squeeze?

Answers on a postcard, to arrive by Friday 2 July: DETAILS 439, IoS, 1 Canada Square, Canary Wharf, London E14 5DL. Three winners will each receive a bottle of champagne

Details 437 came from Georges De La Tour's The Cheat with the Ace of Diamonds (1630-34). Between the rogue on the left, the wine-waitress and the magnificent broad, a complicated sting is being practised on the wet young fop (meant as the Prodigal Son?). The treatment seems mysteriously grander and more solemn than the Bilko subject would suggest. And note how you, the viewer, are put in the role of involuntary accomplice; your eyes join the ring of furtive glances; you see and know what's going on, but are powerless to intervene. It's in the Louvre. The first three correct entries came from: C Carey, Suffolk; J Lewis, York, D Falby, London NW6