I need some help finding the model and the value of an older Benchmark fixed blade. The closest thing I can find is the Benchmark Carolina Hunter, it's very similar, but missing the serrations on the top of the blade. Google is really quick to change the search to BenchMADE as well. One side is stamped BENCHMARK USA **I believe it is a Benchmark Argonaut** but can't really find anything to confirm it. and the other is AD 182, S 651 I don't have the sheath or the box or anything, just the knife.