I recently took this knife on consignment. It is an officers mess kit, hobo, picnic or campaign knife and fork set. The blades store in each others handles. it is marked WOODS CAMP KNIFE PATS ALLOWED SANITARY. I have seen camp sets like this from the Civil War and earlier. This one date to the early 1900’s (pre-1940) I think. I have not been able to find any info. on this makers mark.