Diesel-electric locomotive series 770 (ex. T669.0). The model is equiped by the motor with  balance wheel, the switchable  lighting red/white (according to the direction). The locomotive has  plug connector Next18. 

The original loco  T669  was produced in the factory ČKD Praha  1967 and 1969  as modification  from USSR export  type  CME3.   the locomotives were delivered in  100pcs and 220 pcs of little modifies 771 type. The locomotives was  used for the transport and shunt freight  trains by.  Used  also by  private operators.   Exportet as typ CME3 (USSR)  and S200  (polish)