Can anyone help identify the model and date of this 6 shot 38 special? It’s been in my immediate family since it was bought used in the early 60’s. The swing out pin and barrel looks different than most of the other pictures I’ve seen. The number inside the swing out is 7459. The serial number stamped in the bottom gripe frame and on the cylinder is 868157. There is no markings that I can find anywhere on the barrel.