Armor for the Tilt (Plankengestech),

This armor was developed for a specific form of the joust: a sporting combat of arms between two mounted contestants. The participants rode along a wall-like barrier known as a tilt (or plankengestech in German) with their left sides facing each other. In the tilt course, the combatants could only make an oblique blow to their opponent's left side. Consequently, a jousting armor on that side was thicker and more strongly reinforced. This example clearly shows the asymmetry of jousting armor. It was built for the Italian style of joust, having a formfitting grandguard protecting the left shoulder and chest, and a gardebras screwed on to protect the left arm. Armors for the German style of joust had a shield affixed to the arm instead of a gardebras.