I have previously posted on two New Model No. 3's that I have, one a standard revolver factory ordered with target sights and shipped about 1900 and the second an Australian model shipped in 1881. I just realized that the Australian has a rebounding hammer and the one with target sights does not. Can someone tell me which was "standard" and which style was used when? Is one style rarer or more valued than the other? I would have thought that the rebounding hammer would have been an improvement but my early and late No. 3's suggest the opposite. Any thoughts or info will be appreciated as usual.