The British Library presents The D’Oyly Carte Opera Company: Staging Gilbert and Sullivan. “Explore original manuscripts, costume designs and photographs from over 100 years of the D’Oyly Carte Opera Company and their iconic productions of the comic operas of Gilbert and Sullivan.” Sir John Ritblat Treasures Gallery, the British Library, 96 Euston Road, London NW1 2DB. 3 September – 8 December 2019; admission free. Monday, Wednesday, Thursday, Friday 09:30 – 18:00; Tuesday 09:30 – 20:00; Saturday 09:30 – 17:00; Sunday 11:00 – 17:00 www.bl.uk.