German drinking glasses that are tall, cylindrical, and decorated in enamel with the imperial double eagle of the Holy Roman Empire. The eagle's breast is usually covered with either a large crucifix or a ball of empire and the wings are sometimes decorated with the heraldic arms of the families or ranks of the Empire. They may or may not have covers. Reichsadlerhumpen were popular from the mid-16th century through the 17th century; the earliest example dates from 1547.
