Topic: Can anyone help, please? Three lions mark + letters FHER

[Frank]

Nice result. Might not be to hard to find the maker as probably German. As museums sell a lot of these sort of repros they might be able to help too.

[Wuff]

I found two dates of FHER registering pharmaceuticals:
1961 (Nyxanthan and Masigel)
1968 (Laxonalin)
Whilst these products won't help to find the manufacturer of your item, it may be an indication of the time frame to look at.

[David E]

Obviously Fher was a pharmaceutical company located
in Mainz

Hmm, Fhermaceuticals, I presume? 

[dirk.]

Thank you guys. 

Mainz BTW has a long history with roman influences also. Bet there´s a lot roman glass in their museums, too.
Finding out the maker however might become an undertaking with efforts surpassing the object´s significance.