And as a little bit of nostalgia...the Big Boy got it's name by an unknown shop worker at the Alco Locomotive works when he took a piece of chalk and wrote out the words "Big Boy" on the front door of the smoke box. In a nod to him, someone has again written "Big Boy" exactly as he did so long ago. If you look closely, you can see the nod to a little history on the front of the engine.