This is a Camillus/Western USA Gut Hook from the good old days, made in USA from 420HC stainless steel. 

If this big 9" inch "American Made" hunter was your favorite knife, this may be the last chance to build/repair a piece of American factory knife history. Put your own handles on this factory finished knife blade, or rebuild one for old time's sake. This blade is straight from the Camillus factory closing sale in 2007. It has never been assembled and will never be made the same way again. 

General Kit Specifications
Camillus Western Gut Hook
Skill Rating: Level 3
Blade Steel: 420HC Stainless Steel
RC = 56-58 (when professionally heat-treated)
Blade Length: 4" Inches
Overall Length: 9" Inches
Blade Width: 1-1/8”
Thickness: .094”
Tang Hole Size: .250 (1)

Stamped (USA)