If you're talking about 'modern' coins, I recently bought a 1987 version (last year of minting) for £49, new, at Llechwedd Slate Mine in Snowdonia, Wales. Hope this helps you.
two bob or half a crown in old money
It would be worth 12.5 pence.
Two bob or half a crown in old Money - same as Ronnie Corbett and the Krankies.
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