Wow...you guys sre really up on your ST mechanisms...I still haven't figured out how to post photos yet...perhaps someone could explain how, or I can email photos to someone who knows how. I think I can send pics of at least 4 different Hunter Arms single trigger designs...two Lard/Thorneley based, and two Jarred (?)...Then I have the LC Crown with the Infallable...and yet another factory Smith trigger that predates Lards association with LC Smith (pre-1899), but I'm not sure of the design as I have never cracked that particular gun open.... Also ...strange as it may sound, I have a factory Remington mdl 1894 ST that is unmistakably a Lard Design...Oh yeah don't forget the Curtiss ST...