File:Georges Braque, 1909, Still Life with Metronome (Still Life with Mandola and Metronome), oil on canvas, 81 x 54.1 cm, Metropolitan Museum of Art.jpg

Published in 1920
[https://archive.org/stream/derwegzumkubismu00kahnuoft#page/n107/mode/2up Daniel-Henry Kahnweiler, Der Weg zum Kubismus, published 1920 by Delphin in München. Written in German. Cit. n. 20.]