Karol Gorny CCS115
My email client can't make any sense of the address given at the end of your post so I am replying on this group.
I have a folded copy of this map but can't see an edition number listed anywhere or any of the details you give underneath.
All I can find is:-
This sheet has been compiled from large scale surveys carried out between 1963 and 1980
Revised for significant changes 1984
Major roads revised 1986
Forestry Commission information as supplied at 1-12-85
I don't know if that's relevant to your query.