Norris built the 0-6-0 steam engine "Philadelphia" in 1844 for the Philadelphia and Reading Railroad. It was rebuilt in 1849 and used for 600-ton freight trains loaded with coal. At this stage in American locomotive development, cabs and the wide smokestacks were becoming standard features. Similar 0-6-0 freight engines were being built by Baldwin around the late 1840s. This model is in the B&O Railroad Museum.