Thanks BillM... didn't know smokeless was available that early, and thanks LE-28 for that link and info. According to that link, I do indeed have a black powder only IverJ. Has leaf spring etc as post dictates. As I said before, the woman who gave it to me said the man who gave it to HER was very adamant that she only ever used black powder 38S&W bullets because the revolver was not designed to handle more powerful smokeless rounds. He was apparently correct.
This place is FULL of knowledge and useful info!!