That would seem to be the 10th edition.

In original bindings and not too badly worn you could be looking at £1,000 - but give me about £300 either way for windage.

I'd get expert help with those if I were you. Check your local museum and see if they have a valuer from one of the big auction houses doing a visit.

. ------------------------------------------------------------------------------------------------------------------------------------------------------Whomever you may murder, there's no police like Holmes.
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