The international pricing (Australia, New Zealand, South Africa and Rhodesia) with no UK price on this issue suggests this was printed as an international edition. This issue is possibly the first in a new series of Western Picture Library.
This signature is mostly cropped from the bottom of the cover, but still recognisable.
This advertisement is for another issue of Western Picture Library, with the cover featured and signed. Text reads: "Fear and terror rode the dusty trails when Mortimer Price bought the Double S Ranch in southern Texas—for Price was a man with—Hate in his heart. These are the opening words of Terror Trail a compelling vivid, complete picture-story Now on Sale 1/-. Ask for: Western Picture Library".