Well, apparently the - whatever it is - is located at a museum at Vantaa in Finland. Someone else seems to have been curious about this on Scalemodels.ru; the answer included the link to this web page:
http://www.enlight.ru/camera/344/index.htmlThere's another photo about halfway down the page; the translated caption for this photo says:
"Aircraft Yak-1 (!). Inscription on top of the star: 'For Vaska and Zhora'.
In the background - a twin-engine plane DB-3.
Both types were widely used during the Russo-Finnish War, and dozens of them were captured by the Finns. In 1941 the Germans gave the Finns an additional amount of captured Soviet aircraft. As a result, several squadrons of the Finnish Air Force at war (admittedly, quite successfully) on a Soviet aircraft."
Possibly some very dedicated staff members or others connected with the museum built these as large-scale display models? It seems unlikely that an aircraft as large as the DB-3 is "real".
John