Poland

[Before 2 September 1939]
Central Archive of the Ministry of Defence of the Russian Federation
Coll. 500, ser. 12451, fold. 753, f. 1.

Press proof. In German

[September 1939]
Russian State Archive of Social and Political History
Coll. 71, ser. 22, fold. 310, f. 32, № 5.

Photograph

[1939]
Russian State Archives of Film and Photo Documents
Ser. 3, album 205, № 36.
Photograph
Praga district of Warsaw. [September 1939]
Russian State Archives of Film and Photo Documents
Ser. 1, album 4040, № 2.
Photograph
4 September 1939
Archive of Foreign Policy of the Russian Federation
Coll. 059, ser. 1, box 302, fold. 2091, ff. 26–27.

Certified copy

Bialystok. 22 September 1939
Russian State Archives of Film and Photo Documents
Archive № 0-291196.
Photograph
[28 September 1939]
Russian State Archives of Film and Photo Documents
Ser. 3, album 199, № 4.
Photograph