File:Pablo Picasso, 1911, The Poet (Le poète), Céret, oil on linen, 131.2 × 89.5 cm, The Solomon R. Guggenheim Foundation, Peggy Guggenheim Collection, Venice.jpg

Published in 1920
Der Kubismus; ein künstlerisches Formproblem unserer Zeit, 1920

See here too: https://archive.org/details/derkubismuseink00kpuoft

Licensing
This image can have no independent copyright as it is simply a faithful reproduction of an old, public domain, two-dimensional work of art published outside the U.S. before 1923.