Help to recognize Austrian maker

[Ubaranda]

Hi all!
I have very nice Austrian beaker, but I don't know who is the maker. Maybe anybody would help me?
Many thanks in advance.

[dognose]

A post that's worth a bump.

Any thoughts?

Trev.

[huszas76]

I think, this mark is from Prague, and the maker too. I don't know him, but I have a sugarsifter with mark from Prague this time, and similar maker's mark!
Best regards!
Krisztián