Marcel Duchamp, L. H. O. O. Q., 1919, pen on a postcard, 19.7 x 12.4 cm, Philadelphia Museum of Art, Philadelphia, artwork in the Public Domain. | The Art Minute

Marcel Duchamp, L. H. O. O. Q., 1919, pen on a postcard, 19.7 x 12.4 cm, Philadelphia Museum of Art, Philadelphia, artwork in the Public Domain.

Marcel Duchamp, L. H. O. O. Q., 1919, pen on a postcard, 19.7 x 12.4 cm, Philadelphia Museum of Art, Philadelphia, artwork in the Public Domain.

Marcel Duchamp, L. H. O. O. Q., 1919, pen on a postcard, 19.7 x 12.4 cm, Philadelphia Museum of Art, Philadelphia, artwork in the Public Domain.

23 Feb ’16

Marcel Duchamp, L. H. O. O. Q., 1919, pen on a postcard, 19.7 x 12.4 cm, Philadelphia Museum of Art, Philadelphia, artwork in the Public Domain.