CC with teeth only holds true for a 5" Model #5. 6, 7 or 8" are cut on Model #5 blanks. The RKCC version of the CC was early 1990's or perhaps a bit later, if memory serves me. A search of the RKS CD's would probably cut the time guessing out. It was a couple of years past those that the CC came into play as a non-catalog model.
Hope this helps, Capt. Chris