my thing with knifes ,,,they don't have much chance to get old,,,my old mind is slipping a bit and has been for years I will use it somewhere or put it up for safe keeping and poof it is gone,,,some I never see again and a few I find as much as 10 years down the road and most are rusted so badly I just throw them away,,,,I have one that comes and goes on a regular basis going on 4 years now,,,,right now I know where it is,,,no telling about tomorrow,,,,,,,,,