This is a gasoline VOLCAN J3 stove, produced in Badalona (a village close Barcelona) around 1950. The most important thing is the pre-heat system with a secondary pipe. Today it's a windy day. I've checked the stove with a windshield. It runned good! The pre-heat system made a short blue flame. Maybe the tank should be fuller. Let me show you how that stove was when I got it: There was a lot of leaks, more than my patience can tolerate. At least, I sealed some threads with teflon film. The secondary circuit picks up gasoline from the tank through this mesh: In a short time I will do the Tea test.