Negrebtskij/Nehrebecki, Kazimir/Kazimierz, Lieutenant-Colonel, Red/Polish Army

[Al-muell]

There's also a training map (shows fictional locations) from 1938 with some markings on it - not sure if that's the example he used during his teachings orif it's a work of one of his students, but interestingly, the map is printed on the back side of an imperial map from 1889.