Lazar_El_Lissitzky_-_Kestnermappe_Proun,_Rob._Levnis_and_Chapman_GmbH_Hannover_-6_-_Google_Art_Project Published September 16, 2013 at 3673 × 2652 in PROUN ← Previous Next → El Lissitzky, PROUN Hannover 6 (1920) El Lissitzky, PROUN Hannover 6 (1920)