Guitar (1913) by Pablo Picasso. Concept and process are stressed, more than on the resulting image.
Picasso,Glass and Bottle of Suze, 1912 Charcoal, Collage & Gouache on Cardboard
Picasso. collage of still life with violin (upside down version of Head, 1913, see below).
picasso/Bottle of Vieux Marc, Glass, Guitar and Newspaper 1913
Pablo Picasso, 1913-14, Head (Tête), cut and pasted colored paper, gouache and charcoal on paperboard, 43.5 x 33 cm, Scottish National Gallery of Modern Art, Edinburgh - Collage - Wikipedia, the free encyclopedia
Picasso Collage Portrait
Picasso guitar collage
Glass, Carafe and Newspapers by George Braque (1882-1963) | 1914, charcoal, collage, oil, chalk #mixed_media #collage
Pablo Picasso - Retrato de Dora Maar, 1936
Picasso Faces, line art + collage, good for younger & assisted work, creative collaboration, & the 'pass it around game'