Black and white photograph showing the auditorium of the Criterion Theatre. The photograph is taken from the rear of the dress circle. Visible architectural elements include: the dress circle, within which can be seen several slender columns; the upper circle; the proscenium arch; the house tabs; and the stage. The auditorium is organised for a radio music concert: reserved signs can be seen on the dress circle balcony; onstage, a piano and music stands have been set up; behind these, the scenery cloth depicts a world map with stylised radio waves emanating from Britain towards the rest of the world.