Back in 1980 I worked for an industrial instrumentation company that sometimes sent me on field trips to get customer feedback. One of our customers was Canadian National, which meant a chance to visit CN's big diesel shop at Moncton, NB, and my hosts allowed me to take a few photos inside. M630 (C630M) 2013 was among the big MLWs getting attention amid the parts, tools, truck frames, and other apparatus that filled the shop floor.