As far as I know, Camillus did make all of the 'powderhorn' Frontiers.
Numbering system:
First and second digit: Pattern
40 series- 2 7/8" Slim Serpentine
41 series-3 1/4" square bolster Serpentine or Stockman
42 series-3 1/4" round bolster Serpentine or Stockman
43 series- 4"Single blade trapper, or Two blade Dogleg Jack
44 series-4" Premium Stockman, Premium Jack or Muskrat
45 series-4" Lockback sportsman
46 series-5 1/4" Folding hunter
47 series-3" lockback
48 series- 5" lockback
Third number indicates the number of blades. If third
digit is P, then it is a 2 blade knife with one of the blades
being a specialty blade. 'P' in 40 & 41 series indicates pen
blade, while 'P' in the 44 series indicates a Muskrat blade.
Forth number indicates handle material used:
1- Powderhorn Stag
2- 'Ol Ivory
3- SundownYellow
4-Gunpowder Black
5- Hardwood (Double Eagle Stainless Steel)
Fixed Blades:
First digit:
41- 3 5/8" Utility Hunter
42- 3 1/4" Drop point
43- 4" Drop-Point Skinner
44 F- 6" Fillet Flexible blade
44 R -6" Fillet Rigid blade
Last digit is handle material, same as folding knives. Only handled in 'Ol Ivory (code number 2) and wood (Double Eagle stainless steel)
Note: Fillet knives, regardless of handle material have stainless steel blades
Note: Folders: All delrin handled knives are Carbon steel.
Here are some fixed blades in a rack. The one laying in front is a 'Parker' tang marked 412 with indian scrimshaw.
Phil
PS.... Jerry, could you please email me? Address in my profile here.