Vintage marble "Arc En Ciel" lamp by Andrea Bellosi for Studio Alchimia, Italy 1970s

A unique and increasingly rare ‘Arc en Ciel" or "Rainbow" lamp designed by Andrea Bellosi in 1978. Constructed with white carrara marble and steel. The "Rainbow" is more than a source of light, it’s a decorative object and a sculpture which, through a prism, projects an arched rainbow of colours over an expansive area. It is in very good authentic condition, the marble base has some small chips as shown in the pictures. The "Rainbow" was produced as a limited edition by Studio Alchimia in Italy.