T-34 variants

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T-34 variants
T-34 family portrait, 1941 (BT-7, A-20, T-34 Models 1940 and 1941)
Type	Medium tank
Place of origin	Soviet Union
Service history
In service	1940–1970s (USSR)
Production history
Produced	1940–1956 (USSR)
No. built	About 84,070

The T-34 medium tank is one of the most-produced and longest-lived tanks of all time.

Identification of T-34 variants can be complicated. Turret castings, superficial details, and equipment differed between factories; new features were added in the middle of production runs, or retrofitted to older tanks; damaged tanks were rebuilt, sometimes with the addition of newer-model equipment and even new turrets.^[1] Some tanks had appliqué armor made of scrap steel of varying thickness welded onto the hull and turret; these tanks are called s ekranami ("with screens"), although this was never an official designation for any T-34 variant.