Clessidra (Hourglass) is a classic of the brand leader in modeling for art glass Venini by Paolo Venini and Fulvio Bianconi in 1957. This color version, grape/pink is a limited edition avaiable only in 99 artpieces. Clessidra is a piece of furniture from the old charm but exceptionally contemporary. Realized with the technique of "incalmo", a very complex machining which consists of coupling two hot blown forms, along their circumference, so as to obtain a same object in different areas, and usually of different color.