#Armillary spheres, planetaria, astronomic orbits, atomic models, molecular models #Natural phenomena #Circles #Inscriptions in cyrillic characters (russian, bulgarian, etc.) #Colours #Atomic models, molecular models, representations of human, animal or vegetal cells #Vortices, rotary movements, tornadoes #One circle #Circles containing one or more other geometrical figures (specify the content) #Circles containing other figurative elements #28.05.00 #Four colours