found: Work cat.: 2001438863: La galleria dei 99, 2001:p. 11 (Venetian filigree)
found: Grove Dictionary of art, 1996:v. 32, p. 201 (filigrana (filigree) decoration) p. 202 (filigrana glass)
found: "Getty vocabulary program" WWW site, Dec. 18, 2001(Venetian glass: Venetian glass-makers particularly excelled in the making of colored glass, agate glass, opaque white glass, cristallo, filigrana, and millefiori)
found: The dictionary of antiques and the decorative arts, c1967(Filigree glass: see Threaded glass: threaded or filament glass, a principal method for decorating glass)