Collins Sergio Asti

4 Arnolfo di Cambio Collins glasses, design Sergio Asti, Italy, second half of the 20th century.
Crystal with alexandrite, with a massive base featuring a bubble and a cylindrical body.
 
Measurements
height 17 cm
rim diameter 6 cm
 
Notes:
Alexandrite is a chromatic effect achieved through metallic oxides that alter the perception of color depending on the light temperature.
The material appears violet or cool in natural light and shifts toward warmer tones under artificial lighting.