Rococo Engraved Georgian Mercury Twist Wine Glass c1760

Description

Heading : Rococo Engraved Georgian Mercury Twist Wine Glass c1760
Period : c1750-1775
Origin : England 
Colour : Clear 
Bowl : Round funnel engraved with mirrors and floral sprays
Stem : A pair of mercury air twist corkscrews
Foot : Conical
Pontil : Snapped
Glass Type : Lead 
Size :  16.1cm height.  5.4cm diameter bowl. 7.3cm diameter foot 
Condition : Excellent. no chips or cracks 
Restoration : None 
Weight:  152grams 

The late baroque / rococo engraving indicates a date of manufacture in the third quarter of the 18th century