The Razorback Rooter is only shown in the 1958 chart.It is listed as S-400. (some boxes have been found showing the Razorback Rooter also used the number B-400) Two years later in 1960 they list a S-400 Rooter but it uses a different blank (the Dancer blank). Then about 10 years later they have a new Rooter listed as C-700 Devils Horse Rooter. It uses the Razorback Rooter blank. It was produced until the early 1980's.