[Homoludens]

[QUOTE=Тати;3326671]But the work was acquired together with the drawings Lebedev and Tatlin 20-30x, that indirectly suggests that it's our hudozhnik@

Note that this indirect argument only works if the authorship of the remaining drawings (Lebedev and Tatlin) confirmed a serious examination. Otherwise, this argument one unknown with another unknown.
P. S. I from Italy such graphics Tatlin was offered - it's better not to remember...