Hey thank you for your time ! The bottom 2 are made with steel housings and I suspected them to be either Timney's or like kind type triggers . They have little creep and areThe bottom two look like Timney triggers since they don’t have safety buttons. Are they steel housings? The hammers appear to be speedlock. The top one has a safety so it appears to be a stock housing. However the hammer is from an 1100. Timney did make a few with safeties so if the housing is steel instead of aluminum it could be a Timney. I can’t see the other side but they appear to be pull triggers. Alant on this forum can tell you more about them and he will know more about their value. If the Timney’s were release I might be interested in one.