UP Big Boy 4006 - A close up of the number plate
{"Image ImageDescription": "The front of Union Pacific X4006, a 4-8-8-4 Big Boy type locomotive, on display at the Museum of Transportation. Photo \u00a9 Tom Gatermann.", "Image Software": "Google", "Image Artist": "Tom Gatermann", "Image Copyright": "Photo copyrighted by Tom Gatermann. All rights reserved"}