The Stranger Returns (1967)

Trap him! Tease him! Throw him in a coffin... But don't get the stranger mad!

The Stranger happens across a murdered postal inspector and a gang of bandits set on a prize of stolen gold which should be transported in a stagecoach. The Stranger, a sharpshooter named En plein and a treacherous postal agent try to get their hands on the gold. Source: SWDB www.spaghetti-western.net