If your gun is that old and a fine shooter "with character" I would leave it alone. Unless you don't like the looks or the condition of the finish is getting worse. If there is any collector interest or possible value then I would not have it refinished. If it is refinished the gun is almost certain to loose any collector value. Collectors want to see the original finishes. First have it properly appraised to get a good idea of it's current value. Also ask what the value may be if refinished. If it is a price that you can live with then go ahead as it's your gun. If refinishing is what you want then my suggestion to send it to S & W for the job. Guns that could be a collector, or valued as "real nice", are better off done by the manufacturer. Not because they can do a better job, but that gun and finish are by the same source. Thus more possible resale value.