Memberes,
For comparison, below is a scarce example od a Randall Model #12-9" in stainless! Notice that the Bowie clip point is present..."NOT" the #14 grind with the "straight" clip point. The knife was made in 1986, long before the #12-9" with #14 grind was offered. The sheath is a "Johnny Johnson" butterfly-stiches roughback sheath. Hopefully by showing this sheath you will be able to recognize the "longer" stitch pattern of Johnny's machine.
Hope this helps, Capt. Chris