 The beakers were mainly produced in Bohemia, Saxony, Thuringia, Hesse and in the Fichtelgebirge.The significance of the imperial eagle beakers for the glassware craft in those regions can be seen by the fact that the glassmakers' guild of the Bohemian Kreibitz in 1669 demanded the production of an imperial eagle beaker as a masterpiece in one and a half days.Through the Imperial Eagles the ideal of the durable unity of the Holy Roman Empire took decorative shape and demonstrates the emotional relationship of a broad public to the Empire.