Altai Tractor Plant named after M.I. Kalinin

USSR. Altai Krai. Rubtsovsk. Deputy Chief Designer L. V. Li, Head of the Transmission Bureau of the Current Production A. A. Martens and Leading Design Engineer A. V. Dementyev (from left to right), working on increasing the service life of tractor units, in the design bureau of the Altai Tractor Plant named after M. I. Kalinin. Evgeny Logvinov/TASS