B Besi

#Surfaces or backgrounds covered with repeated geometrical figures, figurative elements or inscriptions #Triangles, lines forming an angle #Other polygons #Geometrical solids #Colours #Surfaces or backgrounds covered with lozenge shapes #Surfaces or backgrounds covered with other repeated geometrical figures or designs #Several triangles, juxtaposed, joined or intersecting #Triangles with dark surfaces or parts of surfaces #One polygon #Two polygons, one inside the other (except 26.5.10 and 26.5.11) #Polygons containing one or more triangles or lines forming an angle (specify the content) #Polygons containing one or more letters #Polygons with dark surfaces or parts of surfaces #Cubes #Three predominant colours