I have recently acquired a .455 Triple Lock. Finish is an estimated 50-60% and it is going to be a great shooter. This is my first pre war S&W and have discovered that half of the split threaded shank on the extractor rod tip has fractured off at some time in the past. The center pin keeps it where it should be, but I would like to replace it. Would any one have an idea of where to find one or if it is interchangeable with any other model. (I tried Numrich. They were very nice but sent what ended up being 1917 parts which have a female section threaded and are incorrect.) Any help would be greatly appreciated.