Untested, maybe a fiver, but if you power it up and it works (which it probably will), a tenner.
Paradoxically, there are those (and I'm one) for whom the more dilapidated and beyond redemption an item is, the more appeal that it has. Your BEREC radio comfortably fits that description. Most of the radios I have are what might be termed 'basket case' - cracked Bakelite cabinets, damaged veneer on wooden cabinets, missing knobs, missing backs, which I've then restored. Anything which is complete, undamaged and just needs cleaning has little appeal to me - it's for 'collectors' not restorers.
My hobby is restoration - not collecting. I'm a collector by default as once I've restored something, I don't want to part with it.
To my mind, the definition of 'junk' is 'useful objects in the wrong hands'.
If you don't wish to restore it yourself, I'm sure it will find a buyer on the forum who has a similar mindset to mine, albeit it's not especially collectable.
As an aside 'BEREC' - British Ever Ready Electrical Company, has an interesting history:
https://en.wikipedia.org/wiki/Britis...trical_Company