I found this older knife in my basement. It has Needham Hillstreet marked on the sheeps foot blade. It also has a strange can opener and marlin spike. The handles are diamond checkered plastic. I have never heard of this. I also found my old Buck 315 usa knife. It has one sheepsfoot blade and a marlin spike. It has plastic handles with an emblem which contains a hammer, knife and nail on it. Are these knifes collectable and do you have any idea of value? The condition of the Needham is used and a little rusted. The Buck is tarnished and a small amount of rust on the inside of the spring bar. It has had very little use. Thanks Lou