BLACK IN TECH BERLIN

#Surfaces or backgrounds covered with straight lines or bands #Surfaces or backgrounds covered with a repeated inscription #Surfaces or backgrounds covered with repeated geometrical figures or designs #Surfaces or backgrounds covered with other repeated figurative elements #Other geometrical solids #Straight lines or bands #Horizontal lines or bands #Thin lines #One line or one band #Quadrilaterals containing one or more circles, ellipses or polygons (specify the content) #One quadrilateral #Squares #Quadrilaterals with dark surfaces or parts of surfaces #Several circles, juxtaposed, tangential or intersecting #Letters linked to a figurative element #Letters in light-coloured characters on a dark background #Letters presenting a special form of writing #Five colours and over