It doesn't take a lot of "reference materials" to answer this one. Page 29 of the catalog: Sawteeth are "[a]vailable as an extra only on Models #1-6", 7", 8", #5-6", 7", 8", #14, #15, #16, and Combat Companion."

As far as whether it's ever been done, I'll let someone who knows more about the history of these knives answer that one. I'd sure be surprised if it's been done, though, as I can't see it having much practical value on that blade.