Heading : A Georgian Jelly Glass c1770
Period : George III
Origin : England 
Colour : Clear, excellent grey hue
Bowl : Bell shaped, good pucella marks
Foot : Helmet
Pontil : Snapped
Glass Type : Lead 
Size :  9.0cm height,  5.5cm diameter bowl, 5.5cm diameter foot 
Condition : Excellent, no chips or cracks 
Restoration : None 
Weight:  86grams 

At 21mm internal diameter at the base then tip of the smallest 18th century dessert spoon that we have just reaches the bottom of the bowl. Just use as a dram glass if salted bone marrow jelly or other sweeter confection does not appeal