I thought id pop this on for interest .
Convinced it was 1920s/30s I spent ages thinking maybe Steuben, Scottish, WMF, checking books , and web,
nearly given up, when near the back , page 228 of Lesley Jacksons 20th Century Factory Glass book,
I found a big Pic of the identical vase, always a thrill!
Its actually Webb Corbett, Stourbridge, 1920s Agate Flambe vase (resembling Blue John Stone)
I was quite surprised, as i thought of them as mostly crystal!
Hope you like it, maybe it may help someone else one day