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

If this big 8-7/8" inch "American Made" hunter was your favorite knife as a kid, and you always wanted another, this may be the last chance to build/repair a piece of American factory knife history. Put your own handles on this knife, or rebuild one for old time's sake. This blade is straight from the Camillus factory sale in 2007. It has never been assembled and will never be made the same again. 

General Kit Specifications
Remington Gut Hook
Skill Rating: Level 3
Blade Steel: 420HC Stainless Steel
RC = 56-58 (when professionally heat-treated)
Blade Length: 4.25" Inches
Overall Length: 8-7/8" Inches
Blade Width: 1-1/4”
Thickness: .136”
Tang Hole Size: .190 (2)
Tang Hole Size: .160 (4)

Stamped (Made in USA)