Awesome score! I wish I could find stuff like those Schrades, they are my favorite knife brand right now (USA Schrades), second only to the almighty Buck mentioned above. My dad's first knife was a Schrade Mustang, similar to yours but with a liner lock and a carbon blade. Someone stole that one, he bought a second in 1980, and he is still using it today for game and fish. Great knives, good job picking it up.