Dears, A friend of mine sent me a picture of some vaporizer that we can not identify. Most likely it comes from some old German lamp. Looks Hasagish with that brass net at the bottom and square top, but maybe you can help to ID it. all the best, Piotrek
@Henry Plews - it just looks Hasagish to me, but I really have no idea about the origin of that vaporiser. @WimVe - you are right, gasoline Petromax 825 has different vaporiser. Based on the other lamps from my friend collection I just suspect that this comes from some very old German (at least European) lamp, but he does not remember much about that part. Now I start to consider that it may comes from some Polish lamp. Polish lamps were "inspired" by German manufacturers so who knows... I enjoy such mysteries so I will dig more into it, but I would appreciate any ideas.