"Pervomayskaya (closed)" . "the temporary station" . "Pervomaiskaya" . . . . "Pervomayskaya (closed)" . "1" . . . "temporary Pervomayskaya station" . . "1961" . . "Pervomayskaya (old)" . . "Pervomayskaya" . . "1" . "old Pervomayskaya station" . "2" . "1961-10-21" . . "1954-09-24" . "1954" . . "Ground-level, covered" .