Union Pacific 3900 Series 4-6-6-4 Challenger drawings, engine only- Combination Pilot & Beam w/Swivel Type Coupler (3,4,5)
		SKU/Drawing Number: *#GSC 53008 3900
			| Wheel Arrangement: | 4-6-6-4 | 
| Scale to 1 ft.: | 2” | 
| Drawing Title: | Combination Pilot & Beam w/Swivel Type Coupler (3,4,5) | 
| DWG. Size (in): | 30x40 |