Pendulum leader that looks a lot like the ones Badisch, Esbo or Hubert Herr used for its clockworks. There are 2 versions available of the leader, difference is the position of the slot on the leader to slide the escape in. This version the slot starts at 2 2/8″ or 5,8 cm and runs up to 2 1/2″ or 6,4 cm. Measured from the start of the suspension spring hook up. Approx. 4 3/4″ or 12 cm long. Other version also available in a different listing. Used item signs of use. May look slightly different then pictured.