This Foster Knuckle Knife has the identical knuckle guard that appears on the OSS Drop Knives and the tang is welded in the same spot. The bright 6 3⁄4 inch reversed edge blade is marked: FOSTER BROS. MADE IN U. S. A. and the wood grip slab is stamped FOSTER also. The original brown leather scabbard with the owner’s name accompanies the knife. This is a rare specimen. This is the actual knife that appears in Cole IV p. 173.