Baumeister, W. (1889-1955) (attrib.). Abstract composition

Gouache, 34.5 x 25 cm, signed "Baumeister" in pencil in blank lower left corner and w. stamp "Deutsche Herbstsalon Berlin" in blank lower right corner, upper half mounted on board. Browned/ foxed, pinholes in blank corners (upper right corner lacking a tiny piece). According to the present owner: collection Belcampo (1902-1990).