I havae my great-grandfathers LC Smith 20. I had mr. Bob Lefever of Onieda New York to completely check the shot gun out and fix what needed fixing. He did a marvelous job on the gun. I too and having soome trouble finding information on the gun. It's a 20 with ejectors and a number of Fw 195156. The barrels are Mod and inproved and the barels are lined. Perhaps thsi information will help you and perhaps yo can help me. Peay you have a great day.