I have a little I.J. Defender .22 revolver in nickel with rosewood grips. Looks unfired and the nickel is about 99.9 percent at least. I had thought of firing the little colibri rounds in it just for fun. But have never gotten round to it. NO rust or flaking on it, but it is probably an iron frame. Saw one in a Sears catalog repro from 1890-something. Sold for a buck in there.
Your gun is like your nose, it is just wrong for someone else to pick it for you!