Heading : Double series air twist wine glass 
Period : George II / George III - c1750
Origin : England 
Colour : Clear
Bowl : Bucket with everted rim
Stem : Six-ply spiral band outwith a twisted air column  - rare stem type
Foot : Conical 
Pontil : Snapped 
Glass Type : Lead
Size :  15.2cm height, 5.6cm diameter bowl, 6.3cm diameter foot
Condition : No chips or cracks
Restoration :  The rim of the foot has been polished in the distant past. Significant natural wear has accumulated.
Weight: 138 grams 

This specific stem formation is very rare.