*
*
*
*
IS-IV*
*
Approx 250 IS-4's were manufactured starting in*
1946 or 1947. Most of these tanks were sent to*
Far East units. In 1949, production was*
canceled and by the mid 1950's these tanks were*
removed from service due to poor transmission*
reliability and as well, the tank exceeded the*
carrying capacity of most bridges in it's deployment*
zone.*
