In my opinion, the Alco RS2 had the worst fuel filler location of any locomotive design, EVER. It's located on the cab sidewall, and you can see the fuel spill running through the word WEST. The fuel tank was located beneath the cab, also not a good plan IMO. On the other hand, I'm impressed that the UP added a nice all-weather cab window, and it appears that someone took the time to block off the hood top cab windows with brown paper.
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