Glass in the "zanfirico" technique, brass, mirrored glass.
History:
A smaller example of the model and technique was exhibited at the IX Milan Triennale, 1951.
Literature:
Marino Barovier, Carla Sonego, eds, 'Paolo Venini and His Furnace', exh. cat., Le Stanze del Vetro, Venice, 2016, pp 121. (model in a small size illustrated)
Ref: 2505079