Sell 'Em Cowboy (1924)

Frank Mathewson, Jr., a would-be cowboy and the son of a Chicago saddle manufacturer, decides to investigate on his own some unexplained competition his father's firm has encountered in Claxton, Arizona. In Claxton, cowboy Luke Strong has been blackmailed by a rival firm to run Mathewson's salesmen out of town and promptly does the same when junior shows up. Frank returns, captures Luke after attempted robbery, and continues his romance with Millie Atwood, daughter of his father's client.