#Armillary spheres, planetaria, astronomic orbits, atomic models, molecular models #Plants, objects or geometrical figures representing a personage or an animal; masks or fantastic or unidentifiable heads #Quadrilaterals #Atomic models, molecular models, representations of human, animal or vegetal cells #Other unidentifiable personifications, other fantastic beings of human appearance, genies, snowmen, scarecrows and ghosts #Rhombs or squares standing on one of the corners thereof