Original U.S. WWII Blade Marked Second Pattern M3 Fighting Knife by Camillus with M8 Scabbard by B.M. Co. Japanese Military Maps The lock plate is stamped

The lock plate is stamped "851" indicating manufacture in 1851

so they are most likely topped with pebbled aluminum

It was a forbidding-looking area

Further research into records may be able to find more information on Tremper

Original U.S. WWII Blade Marked Second Pattern M3 Fighting Knife by Camillus with M8 Scabbard by B.M. Co. Japanese Military Maps The lock plate is stampedOriginal Item: Only One Available. A fine U. S. WWII M3 fighting knife manufactured by the Camillus Cutlery Company and accompanied by an early pattern U. S. M8 scabbard produced by B. M. Co. The spear point blade is stamped on the obverse ricasso: U. S. M3 CAMILLUS This undated marking arrangement is generally identified as the second pattern, introduced after the earliest 1943 dated examples. The underside of the steel pommel also retains the U. S.