Hi folks!
Firstly, WOW! That is really a spectacular and unique 50th Commemorative knife! It's really beautiful and wonderfully embellished by two legendary artists. (Yup Rick, you already are one.)
To answer Jack's question about whether it's a Model #3, the answer is no. This blade (7 1/2 inches long) is really a uniquely designed "Bowie" forged solely to celebrate the fiftieth anniversary of Randall made Knives in 1988. The crown stag handles and special spacer arrangement was also limited to just the three hundred knives.
There's lots more information about these great knives in Bob Gaddis' ""Randall Made Knives", pp. 253-57.
Now I only wish I had me one...
Cheers!
David