It's all in the details. The Milwaukee Road's Little Joe is an amazing collection of enormous castings. The shear amount of metal that encompasses the running gear and supports the carbody is something to behold. The design and manufacture dates back to a time when American foundry work was second to none, the country manufacturing base healthy, and the infrastructure of the country alive and growing. General Electric clearly built these locomotives to last in a harsh environment that saw frequent extremes in weather, loading, and speeds. In their lives as front line Western power, they encountered all of these. In the details of an old machine like this Joe, much is learned about old processes and standards, previous ways of thinking, previous ways of problem solving and, just as important, the problems that were solved. The details are a history lesson in themselves. In amongst all of the details of Milwaukee's only existing Little Joe is a detail that harkens back...