Topic: Mid 20th Century Vase? Help with ID please.

[Birkyc]

Acquired this vase a little while ago, thought I would be able to track down its origin or maker, however I have exhausted all my resources without success.

Very tactile chunky piece of glass, 16cm tall, around 11cm in diameter. Greenish tinge at the top, smoky grey body, amethyst tinge at the bottom.
Ground and polished base - with some movement marks. Weighs just under 1kg.

My feeling when I bought it was mid 20th Century, but I could be wrong.

If anyone can identify it or give me some suggestions for further research, I would be very grateful.

Thank you

[chopin-liszt]

 
I think I have seen this rather unusual colour combination in a bit of ZBS before - but in a different shape.