SPARTACO BERTOLETTI , Shihan, 7th Dan Karate, 7th Dan Ju-Jitsu. Shihan Bertoletti is a direct student of Hanshi Robert Clark, 9th Dan. He is President of the World Ju-Jitsu Kobudo Organization and also serves as a member of the Executive Board for the International Karate Kobudo Federation. He also owns and produces the Samurai Magazine, one of the largest and best martial arts magazines produced in Europe.