Set of 4 Quattro Gatti Mario Bellini coffee tables from the 70s

Set of 4 Quattro Gatti nesting tables by Italian architect Mario Bellini for B&B Italia circa 1971 The tables can be stacked as nesting tables or mounted as a slightly pyramidal shelf and used independently of each other. They are made of white lacquered fiberglass reinforced plastic, very stable, very solid, quite heavy They are all signed under the top in the mold and numbered from 1 to 4 Good condition, the 2 smaller models have scratches on the top