Mid Century (?) spherical amber glass ashtray

Hello!

I hope someone can help me with this. This glass ashtray, along with the above decanter, are the first collectables I have purchased (apart from a few diecast cars). I bought them earlier this year in Perth, Western Australia because as a design student, I really appreciate their form.

There's something uniquely mid-century German or Scandi about the ashtray with its pure spherical form and very precise small slices cut away from it to make an opening and base. It has a patinated and slightly bent brass/copper cigarette rest with very little decoration that pivots up and down.

The astray itself is about 95mm in diameter and the glass is about 5mm thick. The glass seems to be of a good quality but has very small air bubbles within. There are no makers' marks on it or the cigarette rest, unfortunately, nor have I been able to find any information about it.

If anyone can share any information about this ashtray, namely its country and years of origin, designer and/or maker, possible value, along with anything else that might be interesting, please share it with me. I would appreciate it greatly!

Thank you!