Kaluga Machine-Building Plant

USSR. Kaluga. Workers of the Kaluga Machine-Building Plant during an inspection of a tamping-straightening machine, the serial production of which has been mastered at the enterprise. Such a machine, which is serviced by three people, simultaneously performs three operations and lays 1,200 sleepers per hour, which replaces the work of 70 workers. Petr Maslov/TASS