Primus No.349 Alcohol-fuelled bunsen burner. A thick wick fills the central tube. The prime and later the burner itself vapourises alcohol in the central tube, which vapour passes thru' a valve, controlled by the knob, to a jet at the bottom of the offset tube.
Great little burner. These seem to produce quite an intense blast indeed. Just the thing when you don't have access to city gas, and don't want to mess about with gas cylinders. I love the well-used look of this one, I know it is tempting to polish this sort of thing, but I really love seeing stoves in their natural working state!
