Murano glass links in double horseshoe rings, suspended by metal frame. Sometimes known as the V&V series. Rewired to U.S. standards.
Charlotte and Peter Fiell, eds., 1000 Lights, Vol. 2: 1960 to present, Cologne, 2005, pp. 116-117 for similar model
Giuliana Gramigna, Repertorio del design italiano 1950-2000 per l’arredamento domestico, volume 1, Turin, 2003, p. 131 for similar model