world war iii checkpoint charlie t 10m heavy tank company tsbx37The T 10 heavy tank is the final development of the IS (Iosif Stalin) heavy breakthrough tank series. It was accepted into production in 1952 as the IS 10, but due to the political climate in the wake of Stalins death in 1953, it was renamed T 10. The T 10 is larger, better armoured and armed than its direct predecessor the IS 3, though it does share many of the fea tures of the IS 3 such as its domed turret and well sloped front hull armour. It is