Mersedes ukhodit ot pogoni
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Russian title : Мерседес уходит от погони
Probably a radio-command model of a Lavochkin La-5 FN or La-7 (tail doesn't fit with Soko 522 below).
Hardly visible is the typical bracing under the horizontal stabilizer (look closely full size third picture).
Acting as the Soviet plane first featured by the model above.
Later, acting as a German bomber.