The prototype of the car was built by the Ortner Freight Car Company for the Department of Defense (DODX) from 1-3/1985 (Series 40245-40418) This HO Scale 1:87 Ortner 68' DODX Heavy Duty Flatcar STL files comes with the body, buckeye trucks and coupler box covers. The only thing that you need to complete this model is some 33' metal wheels and metal couplers of your choice. Also you need 2-56 x 1/4 phillips pan head screws for the trucks and 2-56 x 1/8 phillips pan head screws for the coupler boxes. Note these STL files is for personal use only and not to be commercially reproduced!!!