 The Knight's Cross of the Iron Cross with Oak Leaves and Swords ("Ritterkreuz des Eisernen Kreuzes mit Eichenlaub und Schwertern") was instituted on 15 July 1941.The Oak Leaves with Swords clasp was similar in appearance to the Oak Leaves clasp with the exception that a pair of crossed swords were soldered to the base of the Oak Leaves.The Knight's Cross with Oak Leaves, Swords, and Diamonds ("Ritterkreuz des Eisernen Kreuzes mit Eichenlaub, Schwertern und Brillanten") was instituted on 15 July 1941.