I would first like to say, that this is a great forum with a lot of good information. I have a couple questions about this Model 617 (no dash) I just recently purchased used. It's serial # is BHH6, and is in a 6" barrel length. As you can see by the pic's it's in very nice condition. Would anyone know its approx date of mfg, and I was curious about the grips. Did these come with the revolver, or were the added later? Thanks for any help - it's greatly appreciated