1915 Pablo Picasso

In one of his letters Pablo Picasso aims to give his friend Guillaume Apollinaire a painter's advice. He argues that similar to the cannons, which back then were painted grey, the artillery would just as well remain visible to airplanes. Only the fact that they are jointly coated and dressed in solid colors would point out their form. Instead he suggests to daub the soldier's uniforms "with vivid colors and in bits of red, yellow, green, blue, white, like a harlequin."

In: Kenji Kajiya, The Aesthetics of Camouflage: The Art of a Military Design and its Transformation in Art, 2001