
UP Challenger 4-6-6-4 by Overland, HO Scale — BCHIN LOCOMOTIVES,

6981 UP Challenger 4-6-6-4, #3954, Black & Graphite, Coal,

Union Pacific HO Scale MTH HO 4-6-6-4 Challenger (Oil Burner,

6981 UP Challenger 4-6-6-4, #3954, Black & Graphite, Coal,

8654 UP Challenger 4-6-6-4, #3982, Two-tone Gray, Oil Tender,