Huge Mortar Bomb 1938

[Dreamk]

This bomb empty case was found in a metal scrap near Helsinki in 1938.
Apparently a huge mortar bomb (though the legend calls it "aircraft bomb") , its body's general shape is reminiscent of the air-dropped bombs developped in Russia by Jukovsky in 1915 - of which only summary data are known - the surviving samples in Russian museums being deigned "Oranovsky" (even by Pyreev in its book, though he recognises that the design was Jukovsky's and that they are definitively different from the regular Oranovsky's production) or even "FAB-82" (which is absurd, their weight being above 160kg, up to 400kg according to the model).
Russian, German, Finnish or something else, could someone identify it?



Here, for comparaision, the Jukovsky bombs:

 

[AKON_]

Hi Dreamk
The russian bomb design was handled by Никола́й Его́рович Жуко́вский (Zhukovsky ) not Jukovsky . In the photo, it's the man sitting on the chair.
He was not the first to deal with this in Russia.
Before aerial bombs, bombs for airships were also interesting designs.