Hi, I have a 3blade pocket knife, it came from my grandmother's house but there is no one left to give me any info on where it came from. The knife is 3.25" closed, there are three blades, one marked Schrade NY USA 855 stainless, the other two blades are stamped stainless, there is a metal oval on one side of brown bone like handle marked stainless. Can someone shed some light? Thanks Brad