It certainly looks like it's Anchor that's gone up in flames but there's also a large Auctioneers close by.
https://twitter.com/Notts_TV/status/...shire-46092394
Anchor are not just at Meadow Lane, Nottingham, but also have a large depot at Ripley between Nottingham and Derby, open seven days a week.
Anchor isn't just the largest military surplus outfit in the UK, but in Europe.
https://www.anchorsupplies.com/home
https://www.anchorsupplies.com/virtualtour
One of the items they sell is surplus police riot helmets with polycarbonate shatterproof visors. Excellent for woodturning or when using a chainsaw etc, and a bargain at under £20.00. I don't have one as I have a Trend Airpro powered face shield/respirator, which are ludicrously expensive especially for occasional use.
https://www.anchorsupplies.com/revie.../category/161/
Over the years, Anchor have had lots of ex military radio gear - Clansman etc, which doesn't interest me, but seemingly does others.