Heading : A Very Fine Engraved and Cut Flute With Opaque Twist Stem
Period : c1770
Origin : England 
Colour : Clear 
Bowl : Round funnel, good pucella marks. Engraved with a continuous band of daisies, roses and foliage. Scale cut lower bowl
Stem : A ten ply spiral band outside a four element corkscrew with an air tear
Foot : Conical
Pontil : Snapped
Glass Type : Lead 
Size :  17.8cm height,  5.8cm diameter bowl, 7.5cm diameter foot 
Condition : Exemplary
Restoration : None 
Weight:  176 grams 

The combination of engraving and cutting on the bowl is a very rare combination on a bowl above an opaque twist stem.We do not recall another example.