1) "U.S." marked Model 1904 Hospital Corps bolo knife with leather scabbard and belt hanger. 17 1/4" OAL, 12" single edge blade. Blade is marked "SA/flaming bomb/1914" on one side and "U.S./39978" on the other. 2) "U.S." marked Model 1917 C.T. bolo knife with "BRAUER BROS/1918" canvas and leather scabbard. 14 3/4" OAL, 10 1/8" single edge blade. Blade is marked "U.S./MOD. 1917/CT" on one side and "A.C.C.O/CHICAGO/1918" on the other. Condition: Knife and sheath are good. 3) Collins & Co. No. 18 knife with leather sheath. 14" OAL, 9 1/4" single edge blade. Blade is also marked "LEGITIMUS/MADE IN U.S.A./NO. 18". Condition: Knife and sheath are good.