I've seen a fair number of alcohol stoves, but usually they're very small for backpackers. First one I've seen like this. The enamel color on it, as well as the age of most things from this unit leads me to think 1970's. Beyond that I can't identify a brand or any way to assign a value.
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The label lead me towards the possibility of it being a fondue heater, but the design looks more like a stove. Much shorter and closer to the flame than the fondue sets I see online.