My bet is that it is not Russian, but judging by the color scheme, that it is British. The personnel in the photo also look strikingly like German soldiers, judging by their atire. I think it is prolly the tail section of something around the BOB time or earlier, say the sitzkrieg. Another thing striking about it, is the protrusion of structure extending aft along the top of the vertical stabilizer. That does not appear to coincide with the known Russian designs. It looks to be solid from the picture, and less like a scrap of fabric left behind as it was either torn of, or more than likely burned off. (Torn fabric leaves lots of trailings behind, and their appears to be none of that there.)
Anyways, my bet says it is a f/b or light bomber of British or early American design. This is a tough one though!