Lovely coffee table attr. to Vignelli

Lovely coffee table is in the style by Lella e Massimo Vignelli and manufactured by Casigliani.
This table his the model Metafora. It was produced in Italy in the late 1970's.
 
The glass is suported by 4 different shaped black marble objects. 
The table is in a good condition. 
The glass is in a good condition with minimal wear. 
 
Measurements:
110 x 110 cm 
Height: 31 cm