18th Century Double Knop Air Twist Ale or Champagne Glass c.1750

This is a tall 18th Century antique air twist ale or champagne glass. It has an elongated bell bowl above a multi-spiral air twist stem with two swelling knops. Conical foot. If you would like to learn more about 18th-century drinking glasses then there are a few article links below which may help. Identification of Antique Drinking Glasses | The English Air Twist Outlander Drinking Glasses | Which glasses did the cast use & how accurate were they? Date & Origin:- England, c1750. Period of George II Historical Relevance:- Hand-blown around the time of the 1745 Jacobite Rebellion, led by Charles Edward Stuart.