Exceptionally rare Ruger Blackhawk .357 Magnum with 10-inch eight land/groove barrel. Made in 1961, serial 37166 features the Flattop frame with three screws, the “Micro” adjustable sight and varnished walnut grips. CONDITION: The bore is very good, with what appears to be minor lead deposits. The action is tight. Metal finish is about 90 percent overall, with modest thinning at the predictable places. For whatever reason, the finish on the female threads at the upper rear of the grip frame (either side of the hammer base) is missing, and a very small accumulation of extra finish is present in the same area. Grips are about 85 percent, with light impressions and scratching. No box or papers.