Proun 2C, oil, paper and metal on
wood, 60 x 40cm, Philadelphia Museum of Art, A. E. Gallatin
Collection (Proun Inv. 14), c1920.
Proun 12E, oil on canvas,
57.1 x 42.5cm, Busch-Reisinger Museum, Harvard University, 1923.
Proun, graphite, wash,
gouache, silver paint, collage, study for a lithograph in
the Kestner Portfolio, 55 x 41cm,
Busch-Reisinger Museum, Harvard University, The
Fredric Wertham Collection, Gift of Hesketh Wertham, 1922-3.
Proun, graphite,
gouache and crayon, collage,
45 x 41.5cm,
Busch-Reisinger Museum, Harvard University, The
Fredric Wertham Collection, Gift of Hesketh Wertham, c1923.
Proun,
gouache, red and black ink,
study for a lithograph in
the Kestner Portfolio,
59 x 43.4cm,
Busch-Reisinger Museum, Harvard University, The
Fredric Wertham Collection, Gift of Hesketh Wertham, 1922-3.
Proun, graphite,
gouache,
35.9 x 27.5cm,
Busch-Reisinger Museum, Harvard University, The
Fredric Wertham Collection, Gift of Hesketh Wertham, c1923.
Proun, graphite,
gouache, black ink,
24 x 22cm,
Busch-Reisinger Museum, Harvard University, The
Fredric Wertham Collection, Gift of Hesketh Wertham,
(Proun Inv. 20), c1922.
Proun, collage with graphite,
wash, gouache, silver paint,
25.9 x 35.8cm,
Busch-Reisinger Museum, Harvard University, The
Fredric Wertham Collection, Gift of Hesketh Wertham,
(Proun Inv. 72), c1922.
Proun, pen and ink,
watercolor, collage
64.6 x 49.7cm, Museum of Art, Rhode Island School of Design,
(Proun Inv. 91), 1924-5.