Bowie Duel from "The Long Riders"

A cinematic depiction of a bowie-knife duel from "The Long Riders," with David Carradine as Cole Younger. This type of duel, in which men fought tethered with a sash, like here, or with their left wrists tied together, was referred to as a "Mexican" or a "Helena" duel (for Helena, Texas, where they supposedly were frequent). They are popular with writers of fiction and screenplays, but if they ever occurred in real life I have yet to find credible evidence.