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Wineglass with a Kuttrolf Stem

A Kuttrolf is a flask with a neck that is divided into two or more tubes. It has Roman antecedents, it was made by German glassworkers in the later Middle Ages, and it is found among Venetian and façon de Venise glasses of the 16th and 17th centuries. The making of a Kuttrolf stem is the subject of this video. Learn more about this object in The Techniques of Renaissance Venetian Glassworking by William Gudenrath.

The Venetian glass industry enjoyed a golden age during the Renaissance. By the early 1500s, the wonders of Venetian glass were well known throughout western Europe. Not well known, however, was how these objects were made. Until now. The result of 30+ years of research by William Gudenrath, The Techniques of Renaissance Venetian Glassworking presents 35 complete reconstructions of Venetian glassmaking techniques through detailed 360˚ photography and high-definition video.