sentences:  In 1919, Bernard continued his theatrical work, designing sets for Sir Thomas Beecham's "Ring Cycle" at Covent Garden.By the 1920s, he began to display an interest in trade and industry, new materials and techniques and adopted a populist approach to decoration.He became a consultant to the Board of Overseas Trade, overhauling the lighting and stage management at the Admiralty Theatre of H. M. Government Pavilion at the British Empire Exhibition in 1924, where he also designed displays.