Thread: winchester 37a 20 guage

seems im about to acquire one of these ....... according to mr wiki there were over a million produced (across the gauges)....between 1936 and 1969 so no way of knowing how old it actually is. or is there?
i dont think they are valuable so was thinking of making it more practical for me by getting one or 2 barrel inserts (.410 and maybe a rifled pistol calibre) i see a couple of places have the chiappa ones listed but for a 12 guage not a 20.
any other suggestions before i contact the agents and see if they could bring some in?