Listen as former curator Dedo von Kerssenbrock-Krosigk describes this trick goblet, which holds a separate "straw" whose finial resembles the head a stag. To drink from it, one has to suck the liquid through the mouth of the stag while covering a hole in the stem of the vessel. Thus, this glass is a perfect device to fool a guest during a drinking game. The Germanic countries have a long tradition of playing elaborate games in high society.