Paul Nash (1889-1946) is the subject of an exhibition at Tate Britain which opens in ten days; and because the Persephone Letter is (unfortunately) so fiercely political this week (Michelle, Gina Miller, The Pickle, A United Kingdom, I Daniel Blake etc etc) something a little anodyne might have suited the Post today. But no, Paul Nash was not an anodyne painter. This is We are Making a New World (1918). It’s normally across the river at the Imperial War Museum, there is a paragraph about its imagery here.