Image of J.D. Sainsbury talking with (his colleagues?) in a room

Photograph showing John Davan Sainsbury (chairman of Sainsbury's; later Lord Sainsbury of Preston Candover) talking with two men in business suits (the one on the left appears to be Bernard Ramm, a Sainsbury's director), and another man in the background pouring a drink (possibly Charles Burdsey, property director). It may possibly be a refreshment break at a business meeting or conference - in another photo of this event a poster can be spotted in the background about "Trends in food shopping" which perhaps suggests this.