Practically the same lamp as this one, apart from the fuel it takes. This one is for alcohol, which you can see from the very large jet and cleaning needle plus the usual restriction at the lower part of the air tube. I'm not sure the model really is a 3515, but considering it to be an alcohol lamp, I reckon it's based on the paraffin lamp with this model number rather than the petrol fueled versions. Or perhaps the alcohol lamp had a number of its own? This tank is a bit different to the one on this paraffin lamp. Luckily this one still has it's original, convex glass, and also the manometer. On the downside, the hanging of the lamp in its frame has been slightly modified. Probably only because the tabs that were welded to the tank broke. It's an easy fix, but I don't bother. ...and obviously some previous owner found it to be a good idea with a carrying handle on top of the frame instead of just simply carrying it in the frame itself!
