Interesting. Thank you very much.
The materials at the links below contain interesting photos and diagrams,
including an armored car on a railway track.
Of course, more about the BA-27M modification.
https://dzen.ru/a/Y3J-Jx9Ji0e2i32p?ysclid=m5nppjlz6155529070
There are also model BA-27M.
Photos from Kubinka are on this site.
If there is interest, I can send a few more from other angles.
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