Postwar American Flyer S Gauge three yellow painted 637 MKT Katy box car variations, one glossy yellow. Glossy car has surface rust on door guides and handles, one dull yellow car has conversion knuckle couplers. Trains look C6-7. One factory original 637 box with wear and tears to "non-opening" end and clear tape repairs to opening end flap. Also included are two red & white Dan Olson Reproduction boxes, very bright, clean, square and solid.