Is-30 Heavy Tank

A heavy tank developed by the Soviet Union after World War II, intended as a successor to the IS-3, but never reached production.

Is-15 Heavy Tank

A heavy tank developed by the Soviet Union after World War II, intended as a successor to the IS-3, but never reached production.

Is-16 Heavy Tank

A heavy tank developed by the Soviet Union after World War II, intended as a successor to the IS-3, but never reached production.

Is-17 Heavy Tank

A heavy tank developed by the Soviet Union after World War II, intended as a successor to the IS-3, but never reached production.

Is-18 Heavy Tank

A heavy tank developed by the Soviet Union after World War II, intended as a successor to the IS-3, but never reached production.

Is-19 Heavy Tank

A heavy tank developed by the Soviet Union after World War II, intended as a successor to the IS-3, but never reached production.

Is-20 Heavy Tank

A heavy tank developed by the Soviet Union after World War II, intended as a successor to the IS-3, but never reached production.

Is-21 Heavy Tank

A heavy tank developed by the Soviet Union after World War II, intended as a successor to the IS-3, but never reached production.

Is-22 Heavy Tank

A heavy tank developed by the Soviet Union after World War II, intended as a successor to the IS-3, but never reached production.

Is-23 Heavy Tank

A heavy tank developed by the Soviet Union after World War II, intended as a successor to the IS-3, but never reached production.