Soviet Class AA20 (Updated)
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This build was made by Zombiehunter2.0. If the author is listed as something else, then this is a reupload.
Updated with more detailed wheels and working pistons.
"The AA20 was a "4-14-4" (Russian notation: 2-7-2) locomotive (using the Whyte notation classification of steam locomotives by wheel arrangement). It featured four leading wheels, fourteen coupled driving wheels (seven axles) in a rigid frame, and four trailing wheels."
Info from Wikipedia
