"Conserve Material" because Adolf hates when you do that. Esp. don’t use that eraser wheel thing too much. That even pisses me off. A World War II advertisement - Waste helps the enemy! Via recollective
I can’t find any reference for the origins of this. But it’s a fine geometric collage thingee.
Karel Teige - Collage no. 127, 1939.
… from Karel Teige / 1900-1950: L’Enfant Terrible of the Czech Modernist Avant-Garde, Edited by Eric Dluhosch and Rostislav Svacha, MIT Press, 1999.