Have Gun, Will Travel - Season 2 Episode 7 The Road to Wickenburg I don't think you got a very good look at this gun while you had it.
Overview: Paladin wakes up after being drugged, beaten and robbed in the town of Blue Bell by five men, one of whom is the town's sheriff. They took his money, gun, bullets, horse and saddle. All he has left is his two-shot derringer.