Canadian Army Knife by Grohmann
Made by the Grohmann family in Nova Scotia, this style is based on the original D. H. Russell knife.
The blade is #3 stainless steel, 4.25" long, full tang construction. The knife is 8.25" overall length, with a leather flap-style sheath.
These are closeouts on knives that had a minor flaw on the handle and are marked "S" on the blade for "second," but the blades are of first quality.
This design was carried by military forces in Canada for a long time.