Disclaimer: not an expert. Any faults are my own.
North 1997/Spink 2562 6d and should weight around 2.9-3g with a diameter of approx. 25.0-25.3mm, with an unclipped flan, in average Fine. Was this a ground recovery coin? It appears the obverse has sustained some scratches in front of the bust, perhaps it could also be crystallization of the metal/alloy separation. Not sure what the white areas are on the reverse.
A quick look at auctions and you can find the same date with the various intermediate bust types has sold in F-gF for £30-£50 and nVF-VF for £60-£90, above VF it gets quite expensive to play. Your coin is decently centered, with minor flan loss; but I wouldn't expect that it should bring more than £20/as-is on the top end and that's only if there are not further issues not seen in the photos.
I'd keep it for the historic value and to have one in the cabinet if you haven't got one already.
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