Hi, Heb - Wolf are still operating here in Sheffield and even have a major agency in Houston, Texas. They haven't made flame safety lamps since the 80s and nowadays can't supply much in the way of spares. In fact, when they stopped production, according to what a former storeman once told me, most of their stocks of unissued traditional miners lamps were destroyed (with club hammers) on Mines Inspectorate instructions, to prevent them being issued and used by "unauthorised people". Makes me weep to think about it.
If you come into Sheffield by train from the south, you can see their place on the left as you're approaching the centre. They still make and supply intrinsically safe lighting: everything from torches and handlamps for hazardous environments and the emergency services, through to lighting for coal mines and other potentially explosive atmospheres, including their world famous compressed air turbo lamps. 'Baby' Wolf lamps, as once used by managers and others who didn't need a full shift lamp, are a popular collector's item but steadily getting quite rare. It didn't help when the last two dozen of those got the club hammer treatment. (Try www.wolf-safety.co.uk/) John 🙂