Finally got it home and made a few pictures. This is a model 25 that was converted to a 44 magnum with a 3 inch barrel, by an unknown gunsmith and as far as I can tell the smith did a nice job. Built in 1980 I think. The only issue I have found is the cylinder/barrel gap is only .003. Not sure if that will cause a problem unless the end of the cylinder gets really dirty. Please share your thoughts on this. Have yet to shoot it but looking forward to it. I also changed out the Pachmayr's that came on it to a set of Hogue's that I had laying around.