Don't I know it! If you notice in my original post I said I used to own one, had an lk35 pack at the time, had it on the bottom of the frame but did not tie it securely enough! Searched for weeks returning to the same location. Never found itThe positive with those brightly coloured items is that they are not so easily lost.
Drop a Gränsfors on a nicely vegetable covered forest deck and you can easily forget it.