C & NW Railroad Document Folder. Material: plastic. Size: 4 3/4" W. x 10 1/2" L. Description: orange plastic - clear plastic edging - folded rectangle forms two inside pockets - black print across front: "Protect Your Back Big 3, Stomach In, Knees Bent, Back Straight" - clear writing on back: "U.S. Patent No. 3.230.993 Sold only by Ken Smith, Patentee Douglas Kennedy Company, Inc. 47 South 9th Street, Minneapolis MN 55402" - black print and logo at back bottom edge: "Chicago and NorthWestern Railway". Chicago and Northwestern Railroad. C & NW Railroad.
