Gouache drawing of vibrant colors in surrealist style attributed to Futur Balla (Giacomo Balla) in 1917. Biography and description of Giacomo Balla's art can be found at this link: https://artsandculture.google.com/story/giacomo-balla-mart-museo-di-arte-moderna-e-contemporanea-di-trento-e-rovereto/aAXhnWGK_FLIKw?hl=en