MTH RailKing Union Pacific 4-8-8-4 Big Boy

IN 1996, THE FIRST MTH RailKing articulated locomotive – the no. 30-1107 Union Pacific Challenger 4-6-6-4 – rolled onto tinplate track and created quite a stir. Regardless of its reduced dimensions, no manufacturer had ever offered an articulated, die-cast metal steamer for the small layout, tight-radius crowd. Its success heralded 1997’s Allegheny 2-6-6-6, 1998’s Big […]

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