IS-3/Object 244 Heavy Tank

A series of prototype IS tanks intended to mount various guns were created. The IS-3 is one of these tanks. Not to be confused with the later IS-3 (Object 703).
Variants:

1.
Name: IS-3/Object 244
Type: Heavy Tank
Origin: Soviet Union
Year: 1943
Produced: ???

Length: 6.77 Meters
Width: 3.07 Meters
Height: 2.73 Meters
Weight: 46230 Kilograms
Speed: 42 km/h (35 km/h off road)

Crew: 4

Primary Armament:
-85 mm D-5T-85BM
Secondary Armament:
-7.62 mm DT

Gun Flexibility:
15° Ascension?
3° Depression?

Armor:
-Hull
120 mm Front
90 mm Board
60 mm Rear
40 mm Top
20 mm Bottom
-Turret
105 mm Front (75 mm Gun Shield)

Sources:

http://war1945.ru/domestic-vehicles/519-tyazhelyy-tank-is-2-obekty-240-248.html

http://tankarchives.blogspot.com/2013/07/birth-of-is-tanks-part-3-is-100-and.html