18th Century Mercury Air Twist Wine Glass c1750

Description

Heading : A double series mercury air twist stem wine glass
Period : George II- George III c1750
Origin : England 
Colour : Clear 
Bowl : Round funnel. good pucella marks
Stem : A pair of tapes outside a corkscrew cable
Foot : Conical
Pontil : Snapped
Glass Type : Lead 
Size :  15.2 cm height.  5.6 cm diameter bowl. 7.4cm diameter foot 
Condition : There is a 2mm long and 0.7mm deep at maximum extent. crescent shaped chip on the foot rim. Accidents do happen and this one is our making.
Restoration : None 
Weight:  152grams