I have read about this knife but can't get a good guest of the year it might have been made. On the blade it only has SCHRADE + on the first line closest to the hinge of the blade. Then the second line has U.S.A. LB 7, with no other numbers or words. The leather case is very worn. I got this from my Uncle Luke who said he carried it with him for the 7 tours he did in the Vietnam War. It was a gift to him from one of his brothers. Any help would be greatly appreciated, because I am planning on gifting this to my oldest son who collects knives.