This is an accurate hi-res detailed model of one version of the Hudson 4-6-4 class locomotive. All moving parts are correctly pivoted and linked. The entire drive train is animated one revolution over 180 frames. There are about 40 materials and 26 texture maps including bump maps for rivits. It is modeled in real world dimensions. It comes with CPR and BCRail tender markings. (The front placards can be removed for the CPR version). The tracks are included.