The Model 1011 was developed for this series from the Böker Classic Model 2020, which Texans have revered as a "folding hunter" since the 1920s. The second blade was removed, and the main blade was fitted with a locking mechanism. Many years later, at the urging of hunters for a lockable saw, we came up with the idea of offering the same knife model as a double-locking knife with both a blade and a saw. The 4021S was born and remains one of our best-selling models today. For the first time, we left the bone unstained in its natural ivory white. The production run remained at 600 pieces at DM 360. These, too, sold out faster than they could be produced.