1430532

#Circles #Quadrilaterals #Lines, bands #More than two circles, inside one another, spirals #Circles containing one or more triangles or lines forming an angle (specify the content) #Circles containing one or more quadrilaterals (specify the content) #Rectangles #Other irregular parallelograms, trapezia and quadrilaterals, quadrilaterals containing one or more rounded corners #Quadrilaterals containing one or more circles, ellipses or polygons (specify the content) #Quadrilaterals containing one or more triangles or lines forming an angle (specify the content) #Quadrilaterals with dark surfaces or parts of surfaces #Wavy lines or bands, zigzag lines or bands