This is what I've come up with, hope this helps.
1. "Combat Companion" Non catalogue model with 01 tool steel blade (forced patina), Nickle silver guard, Black linen micarta, Alloy pommel. post 1995 ("CC" on back of sheath)
2."Model 1-7" Stainless blade, nickel silver guard, concave grip maple(?), Alloy rounded pommel. post 1995
3."Model 25-5" 01 tool steel blade, nickel silver guard, black, white, black spacer, leather, black spacers, polished stag, Alloy pommel. pre 1995
4."Model 16-7 Special Fighter" Stainless blade, brass guard, green linen micarta in border patrol shape, brass lanyard tube. post 1995
5."Model 1-7" Stainless blade, brass guard, leather, alloy pommel post 1995
6."Model 1-6" 01 tool steel blade, brass guard, brass and black spacers, Arizona ironwood post 1995
7."Smithsonian Bowie" 01 tool steel blade, Brass double lugged guard, brass scalloped collar, linen micarta commando shape black or green(?) brass coolie cap pre 1995
8."Model 20 Yukon skinner" 01 tool steel blade, brass guard, leather, alloy pommel post 1995
Check the backs of the sheaths as they should have the model number and blade length in some cases, E.g. "25-5" for number 3 picture; or just the model number E.g. "20" as in picture 8
The models 1, 6, and 16-7 will just have the blade length, "7" for the model 1, and a "6" for the 1-6.
If you have any more queries, just ask.
Hope this helps