PRR F-22 Flatcar HO

Based on http://www.thingiverse.com/thing:2069464, HO version. 4 models (no coupler pockets, knuckle coupler or Kadee and one with platform). For knuckle coupler, use a HO nail drilled through the coupler box as retainer, cut to size.

Thank you Professorburnout for the G scale initial one, I wish mine looked as good as yours !