The Genius of Cosimo I de 'Medici Il Genio Mediceo; Il Genio Medici (' The Medici Genius'); A naked youth - a genius or guardian spirit from classical antiquity - sitting on a baluster-shaped pedestal with the symbol of the constellation Capricorn - a capricorn with a fish tail - and a globe in its outstretched right hand; a symbol of the cosmos.; Bartolomeo Ammanati; Florence; 1556 - 1557; wax; wood (plant material); h 31.5 cm x w 9.5 cm x d 17 cm x h 43 cm x w 9.5 cm x d 17 cm