c1850's John Russell Green River Works /Butcher knife 11.5" long with 6 7/8" blade, real deal circa mid 19th century give or take 10 years. Has Siffie Engraved on reverse side, it's been like that "forever".

A favorite among the Mountain Men, Green River knives were originally made in Greenfield, Massachusetts by J. Russell. The factory was started in 1832-34 to make butcher and kitchen knives. . His knives rivaled the quality of those manufactured in Sheffield, England, and as settlers moved West in the 1840s Russell's Green River knives moved with them. Green River knives were ubiquitous in the early American West, and the phrase "up to Green River" entered the American lexicon meaning something well constructed or very well done.