The T-54/T-55 tank series is the most widely used tank in the world and has seen service in over 50 countries. It has also served as the platform for a wide variety of specialty armored vehicles. T-54-3 (Ob'yekt 137Sh) or T-54 Model 1951 - Produced 1952-1954, in Poland 1956–1964. Adopted the familiar, fully egg-shaped turret and new TSh-2-22 telescopic gunner's sight instead of the TSh-20. Also, early T-54's lacked a snorkel. The tank is also able to use its engine exhaust smoke system to create smokescreen by injecting vaporized diesel fuel onto the exhaust system. This feature was continued throughout the entire T-54/T-55 series and was used in the T-62 series.
