AWOLF,
OK, such triggers are more or less generic. Most any left hand (rear) trigger can be made to work. You may have to rework it a little to make it match the other one and you may have to relocate( drill another one) the hole for the axle pin. The first place to check is the oldest gunsmith in your local area. Do not check only "high end" gunsmiths, the "parts changers" are the ones that will have what you need. The second place to look is Dixie Gun Works. If you can't find one after a diligent search, PM or Email me.
Mike