Going through some of my knives I got from my dad after he died, I have a Schrade Uncle Henry still in the package, never opened. Its an 897UH 3 blade stockman style. It has the International Hunter Education Association collectors pin with it. Is there any reason I should keep it unopened or should I go ahead and open it and enjoy the knife? I don't know what year it is, but I would assume he bought it in the mid 1990's.