Topic: Large Two Tone Modernist Bottle Vase???

[LEGSY]

Found a large piece of quality glass in a second hand shop it feels more of a quality
piece than a modern replica in my opinion but not to be sure i thought i would see if
anybody recognizes the maker. It has some wear in areas on the base so has some age.
8.5" x 5.5" 1.8 kg. The rim is well cut 7 polished both inner and outer edges cut. The color
is unusual i would love to know how this was achieved ??. The shoulders remind me of some
Italian pieces i have owned or possibly Czech? Thank you

[chopin-liszt]

I'm sticking my neck out and reporting on some vague tummy rumbles. (They might just be wind.)
I'm sure I have seen this before, and have a bit of a Scandi/Norwegian/Hadeland-ish feeling about it. In that descending order. I may be completely wrong.