1) Springfield Armory Bolo knife with leather sheath. "S.A./flaming bomb/1910" marked on the ricasso, "US/16257" marked on the other. "NEK/1904" stamped into the sheath. OAL: 17 1/4" with a 12" blade. 2) Springfield Armory Bolo knife with leather sheath. "S.A./flaming bomb/1910" marked on the ricasso, "US/14355" marked on the other. OAL: 17 1/4" with a 12" blade. 3) US Model 1917 bolo knife with sheath. "U.S./Mod 1917" marked on the ricasso, "Plumb/Phila" marked on the other. knife is ill-fitting in the sheath. OAL: 15" with a 10 1/4" blade.