The prototype of the car was rebuilt by Norfolk Southern from former SIECO 50' FS94 Pulpwood Cars in the Norfolk Southern's TieGon Conversion Program in the 1990s. This HO 1:87 Norfolk Southern M-272 MOW Crosstie Gondola STL files comes with the body, A and B platforms, brake wheel and coupler box covers. The only thing you need to complete this model is some 100-Ton rolling bearing trucks with 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 coupler boxes.