Topic: Help needed to date a cut glass (crystal) mantle lustre vase

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Is there any way of dating this cut crystal mantle lustre please?  It is cut from top to bottom including the rim of the foot and edge of the knops on the stem. Each edge of the saw tooth rim is bevelled and the gaps in between have been dipped, not just cut in a 'v'.  The foot is domed.  I'll add a picture of the foot and base next.
It measures 10 1/2" tall by 4 3/4" widest.
Thanks for looking   
m

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