The Red Army were issued with 2 patterns of uniforms
before and during the war -
(Known as the Great Patriotic War).
The difference between the 2 uniform was the tunic
which is called 'Gymnaistorka'
These Gymnaistorka's were labeled Obr and then the year of introduction was added. Obr35 and Obr43.
The first pattern was the Obr35 Gymnaistorka which was the pre to mid war Gym and was replaced by the Obr43 Gym.