‘It glows’: restorer removes queasy look from first world war painting Gassed

John Singer Sargent picture of soldiers blinded by mustard gas, the most popular at the Imperial War Museum, is seen in new lightSince it was unveiled just months after the end of the first world war, John Singer Sargent’s monumental painting Gassed has been hailed as an era-defining artwork, going on to be the most popular in the collection of the Imperial War Museum in London.Enormous in scale – it is more than 6 metres wide – the painting depicts lines of soldiers, blinded b