Up 3977 Side View
UP 3977 side view
UP 3977
UP 3977
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UP 3977
UP 3977
UP 3977
UP 3977 Challenger 4-6-6-4 - a photo on Flickriver
UP 3977 portside
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BLI 8655 N Scale 4-6-6-4 Challenger Steam Loco Union Pacific UP 3977 ...
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UP 3977
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UP 3977
UP 3977
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UP 3977
UP 3977 2002
Union Pacific 3977 Steam Locomotive | UP 3977 on display at … | Flickr
UP 3977
UP 3977
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UP 3977 on display
UP 3977
UP 3977
The Challenger - UP 3977 - HDR by LakeFX on DeviantArt
UP 3977
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UP 3977
UP 3977
UP 3977 2002