Jason Farago, “Degenerate Art: The Attack on Modern Art in Nazi Germany, 1937 review — What Hitler Dismissed as ‘filth’,” The Guardian 13 March 2014

Dix, who earned the Iron Cross as a soldier during the first world war, was a favourite target of these proto-Degenerate Art shows; his glorious grotesques such as War Cripples (1920), they claimed, were insufficiently patriotic. War Cripples was included in the later Munich exhibition and was subsequently destroyed. The Neue Galerie [in NYC] has a contemporary postcard of the lost work, as well as the painting’s frame, hanging empty.