Mies van der Rohe, Ludwig Barcelona Pavillon, Innenansicht mit beleuchtbarer Glaswand und Onyxwand 1929 Agency- resp. copyright stamp on the reverse Formerly estate Eduard Ludwig (1906 - 1960) 16,1 x 22,7 cm 6 3/8 x 8 7/8 in. Literature and illustration: Philip C. Johnson, Mies van der Rohe, The Museum of Modern Art, New York 1947, p. 74