Rare Engraved Georgian Ale Glass c1800

Heading : Georgian ale glass
Period : George III - c1800
Origin : England 
Colour : Clear 
Bowl : Conical - intaglio engraved with elderberries
Stem : Double annular knop collar
Foot : Conical 
Pontil : Snapped 
Glass Type : Lead 
Size : 12.8 cm height, 5.8 cm diameter bowl, 6.6 cm diameter foot 
Condition : Excellent, no chips or cracks 
Restoration : None 
Weight: 126 grams 

Please see

https://scottishantiques.com/engraved-georgian-ale-glass