Fulvio Bianconi
Vase in “pezzato” glass made of tiny irregularly-shaped polychrome tesserae

Bianconi experimented considerably with pezzato glass vases, and also produced versions with tiny melted and irregularly-shaped polychrome tesserae recalling murrine glass vases. Very few items made with this technique exist today, and all were presumably test pieces or made for one exhibition or another.
Bibliography
Marino Barovier (editor), Fulvio Bianconi alla Venini, Skira, Le Stanze del Vetro - Fondazione Giorgio Cini, Milan - Venice 2015, exhibition catalogue (Venice, Le Stanze del Vetro, Fondazione Giorgio Cini, September 13, 2015 – January 10, 2016), page 189.