Don't call it a comeback....or an SD70MAC. That is simply for reference, this (for all intents) is a piece of training equipment, ex-4507, it appears to be a "tank" or "box" car in the register that will join a train painted this way. When? Not sure. This was supposed to be set out in Baldwin, but ran all the way in. So it will need to go back. This is a prime example of making an effort to see something new & unusual, only to have it land in your back yard without effort. There will be a demo for RIT in Baldwin, FL mid-February. The significance of the road number being 343 first responders that died on 9-11.