Description : In the 14th century, stemmed glasses were the most popular type of drinking vessel. Hundreds of fragments of this type of glass have been discovered at Saint-Denis, but this piece is the most remarkable among them. It is very tall, extremely thin (the bowl is no more than 1.5mm thick), and perfectly balanced, because the diameter of the bowl and base are identical. It was made from three separate pieces of glass, corresponding to the three parts of the piece: the hemispherical, eight-sided bowl, the solid stem encircled with a glass thread at half-height, and the conic base that flattens to horizontal in a spiral movement. This glass alone attests to the quality of urban life in Saint-Denis in the Middle Ages.