I just picked up an old 3-Screw Ruger Blackhawk in .357, with a 6" barrel. Its not in the best condition, but I would rate it around 70% with just a hint of rust. Mechanics are solid, and I think most of the rust can be polished out with a wool brush. Internals look very good, and this gun would definitely benefit from a good cleaning. Serial number indicates a manufacture date in the late 60's. Any idea on a value?