For sale is a SW Model 10-5.  This is a pre-ownwed firearm.  I purchased it from a wholesale distributor of firearms.  The revolver was completly disasembled, cleaned, inspected, lubricated, and reassembled.  Work was completed by a professional gunsmith.  The revolver is a square butt with a 4" tapered barrel.  Serial #D61xxx.  Manufacture date about 1968.   Revolver is mechanically sound with a great trigger.  There appears to be Department Markings on the bottom of the frame forward of the trigger guard.  JP 2230.   A good example of an old favorite at a reasonable price.