A Mercury Air Twist Stem Wine Glass c1750

Description

Heading : A Mercury Air Twist Stem Wine Glass
Period : c1750
Origin : England 
Colour : Clear 
Bowl : Round funnel
Stem : An eight ply air spiral band
Foot : Conical
Pontil : Snapped
Glass Type : Lead 
Size :  16.5cm height.  5.6cm diameter bowl. 7.0cm diameter foot 
Condition : A 9mm x 4mm flake chip of the underside of the foot wth indent in the room.
Restoration : None 
Weight:  135grams