These HO parts represent the ends found on hundreds of house cars of the NYC lines, NKP, and various other roads. These cars ran from the teens into the 50's. The parts include the ribs, locating dimples for grabs, and rivet detail. Other details would be added by the modeler. The ends were sized to fit the MDC short boxcar or reefer bodies to create accurate models or stand-ins for a lot of these cars. The are 1 scale inch too narrow and too short to exactly fit the NYC prototype drawings. They can be used as is, or as masters for resin casting.