Union Pacific 3900 Series 4-6-6-4 Challenger drawings, engine only- Lettering & Numbering Diagram (1937)
		SKU/Drawing Number: #993-CA-24992 C
			| Wheel Arrangement: | 4-6-6-4 | 
| Scale to 1 ft.: | not scale | 
| DWG. Size (in): | 30x24 | 
| Drawing Title: | Lettering & Numbering Diagram (1937) |