The prototype of the car was built by the Portec Rail Group for the Southern Railway from 4-8/1981 (Series 62300-62399) Norfolk Southern class them as CSS-1. This HO 1:87 Portec 100-Ton CSS-1 Steel Coil Gondola STL files comes with the body, covers, end rail style 1 & 2, brake wheel, coupler box covers and also included the 6ft and 8ft steel coils. 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!!!