Because It's Friday

Italian steam:

Why did the Italians put the stack exhaust at the midpoint of the locomotive, you ask? It is a "Franco-Crosti" boiler; the exhaust gasses run back through a large feedwater heater before being exhausted up the stack. The West Germans and the Brits built some locomotives with those boilers. But they turned out to be maintenance hogs because the stack gasses corroded the guts of the feedwater heaters. The Germans lived with them until dieselization in the late `60s. The Brits converted them to a standard configuration.