Hi all! I'm new here. I just purchased a 3913LS 9mm and was given a 15-3 .38 revolver as a gift. They are both in wonderful condition. I had been looking for the 3913LS for years and finally found one, but it's the 15-3 that is most interesting to me...I carried one in the USAF in 1987-1988 in Panama. With a serial number of 1K62006, would anyone have a guess as to when it was made? How would I find out for sure? Thanks!!!