This video from oorail.com looks at 42839 in BR Black with custom weathering. This is an old locomotive in OO gauge by Lima. The 'Crab' class steam locomotives are a rare model to find, only Bachmann have released a limited updated version of this class. The locomotives were originally built in the late 1920s and early 1930s and retired in the mid-late 1960s. The video features 42839 running on the layout, details about the class and loco and a close up pan around look.