I often wondered how long it would take someone to find this drawing & I'm happy to see someone finally brought it up.
For those who are curious about this design I certainly can bring some light to the matter as I know more about the "Tracker" knife than anyone.
I can't speak for the smaller knife pictured below as I've only ever seen a drawing myself but the Tom Brown Tracker survival knife shown was actually produced except that it never went by the name "Tracker" back then.
The drawing you see is the pattern Tom Brown drew. This was his origonal design & went by the name the "Medicine Blade" which was etched into the side of the knife. This was the origonal pattern that took Tom Brown seven years (as he claimed back then) to have designed. It was produced for him by a fellow named Ed Lombi, a machinist who stopped making this pattern in the early '90's after the demand for my knives skyrocketed & Ed went on to other interests.
His knife was made from 01 tool steel (1/4" thick from point to butt). It had a flat ground hatchet edge & a hollow ground draw knife. The top edge of the blade was tapered like the hatchet & had a single row of saw teeth which would only cut a "V" as deep as the teeth.
I handled one of these knives during my standard survival class while at Tom Browns' school back in 1987. Although very crude, I saw potential in the design which gave me the inspiration to take it to the drawing board & re-design the knife with my own improvements. From that point on, all of the changes & modifications made from this "Medicine Blade" pattern to the TRACKER knife as we know it from the "The Hunted" film were developed by myself & not Tom Brown. This new pattern was such am improvement that I was asked by Tom Brown himself to produce them for his students. His students began calling my knife the "Tracker" knife once it became associated with Tom Browns' TRACKER School & I became the first to trademark the name.
Of course there's more to the story but I'll leave it at that, now that I filled everyones' curiosity with some interesting historical facts about the knife that most folks never new.
David R. Beck