Gino Onesto "Sommerso" Murano Italian Art Glass Vessel. Signed "Gino Onesto" dated 1999. Measures - 11 1/4" high x 8 1/4" wide. One of the most famous family dynasties of Italian Murano art glass is the Onesto family and this particular piece is by the world class Michele Onesto. Born in Italy to a family of glass makers. Sommerso or "sunken glasses", is a form of artistic Murano glass that has layers of contrasting colors (typically two), which are formed by dipping a gather of colored glass into another molten glass and then blowing the gather into the desired shape; the outermost layer, or casing, is often clear. Sommerso was developed in Murano during the late thirties and was made popular by Seguso d'Arte & Mandruzzato family in the fifties. This process is a popular technique for vases, and is sometimes used for sculptures.