The M-1890 Intrenching Knife was
a change in nomenclature for the M-1880 Hunting Knife in order
to emphasize that combat was the primary purpose of the knife,
not hunting and skinning game. In 1893, the Springfield Armory
made 501 M-1890 Intrenching Knives.
Changes of markings were made
on the guard and pommel, so as to distinguish the new knife
from its predecessor.
Reproductions of this rare and highly sought
after knife are common and collectors should use caution.