Athearn Genesis G1012 HO Scale 4-6-6-4 Challenger w/Coal Tender Union Pacific UP 3907 DCC/Sound Z Set Williams by Bachmann 48401 O

Williams by Bachmann 48401 O Gauge Front Runner Flatcar with Trailer UP

As a freight transfer

Team Associated 71094 Front Bumper Set for SR10 Dirt Oval Car

Aluminum Front Chassis Brace for use on the Traxxas 4-Tec 2

Athearn Genesis G1012 HO Scale 4-6-6-4 Challenger w/Coal Tender Union Pacific UP 3907 DCC/Sound Z Set Williams by Bachmann 48401 OAthearn Genesis G1012 HO Scale 4 6 6 4 Challenger w Coal Tender Union Pacific UP 3907 DCC Sound ALCO constructed the first 4 6 6 4 locomotives in the world, numbered 3900 to 3914, for the Union Pacific Railroad in 1936. These huge engines were named the Challenger Simple Articulated, or CSA 1, class. The railroad received 25 near copies, classified as CSA 2, the following year. Unlike compound Mallet engines that crawled along with drag freights, the