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All About Glass

All About Glass

This is your resource for exploring various topics in glass: delve deeper with this collection of articles, multimedia, and virtual books all about glass. Content is frequently added to the area, so check back for new items. If you have a topic you'd like to see covered, send us your suggestion. If you have a specific question, Ask a Glass Question at our Rakow Research Library.

Wineglass with a Kuttrolf Stem
Video

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