Hi,
I’ve been unable to find a match - it’s clear glass, except the base which I’d say is amethyst.
Quite thin walled.
Fine concentric rings on the base.
Heavy wear on the base - as shown.
Unfortunately I wasn’t able to capture the amethyst tint on its upper body.
Ht 10cm ( 4” )
Wt 190gm
Any help in identifying it appreciated - thanks for looking

Scott