"Up to the mensur". Depiction of a "mensur", the traditional German academic fencing with sharp blades, using "Korbschläger", a specific weapon developed for that purpose, between the members of different student corps: Corps Saxo-Borussia Heidelberg (left, colours white-green-black-white, wearing white caps) and Corps Vandalia Heidelberg (right, colours gold-red-gold, wearing red caps), the seconds with bended knees, in the center the referee