This 1946 British Pathe newsreel (click on image) shows weekday lunch hour footage of the Gambit Chess Rooms, London. The players can be seen eating lunch, with waitress table service, whilst they play games of chess. The chess games last on average 20 minutes.
The classic quote from the newsreel was:
'Lily the waitress has quite a job trying to keep the players mind on food.
She knows that with chess fiends eating takes second place.'
Link tip thanks to Leonard Barden via Edward Winter's Chess Notes - 6658. Edward Mason (C.N.s 4183 & 6646)