Forgetcha badge units podzagolovok (?)

Bronze, stamping. The sheaf, a rake, scythe and sickle patch element is represented by badges in combination is an emblem of agricultural secondary schools (before the revolution). In the red army, similar symbols were found near industrial armies engaged in agricultural work, however, the presence of the wreath and shield, identical to the police suggesting the identity of this cockade troops RKM related projektowymi. Would love to hear your comments on this topic. Size cockade 25*30 mm Guarantee of authenticity.