The prototype of the car was built by the Freight Car America Incorporated (Roanoke Plant) for Norfork Southern and they were classed as the H65 (Series 146500- 148329) and the H69 (Series 148330-149329) This HO 1:87 Freight Car America 3744 Cubic Foot H65 H69 3-Bay Open Hopper STL files comes with the body with A and B platforms added, brake wheel and coupler box covers. The only thing you need to complete this model is some 100-Ton rolling bearing trucks with 36' 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!!!