Когда был выпущен первый ДР1?
The DR1 diesel-electric trainset was manufactured by Rīgas Vagonbūves Rūpnīca from 1963 for suburban commuter usage within the Soviet Union. In 2017 DR1 trainsets (different modifications) are still in use in Latvia, Lithuania, Russia, Belarus and Ukraine. They remained in use by Edelaraudtee in Estonia until 2014.
1963