An Elegant Georgian Composite Stem Wine Glass c1750

Heading : A Georgian composite stem wine glass
Period : George IIc1750
Origin : England 
Colour : Clear 
Bowl : Drawn trumpet
Stem : Plain stem above a multi series air twist with inverted baluster knop
Foot : Conical
Pontil : Snapped
Glass Type : Lead 
Size :  16.8cm height. 7.0cm diameter bowl. 7.5 cm diameter foot 
Condition : Excellent. no chips or cracks 
Restoration : None 
Weight: 195grams 

References: 

The Arthur Negus Guide to British Glass (John Brooks 1981) pp 61/2

A History of Old English Glass (Francis Buckley 1925) plate XXVIII

Guide to English 18th Century Drinking Glasses (Turnbull/Herron 1970) pp 82/3/4