Soviet Uniforms

9. This soldier of Red Army's 29th Lithuanian Territorial Corps is wearing summer version of full-dress coat, Pattern 1930. The collar on such a coat was to be upright, but photographs of Lithuanian soldiers from 29th Corps show also turn-down collars with Soviet tabs sewn down on them. The distinctive uniform colour of Lithuanian Infantry was yellow. Soldier is armed with a Lithuanian made Mauzer L. rifle Northwestern Front, July 1941.
10. Lieutenant commanding a cavalry scout platoon of Red Army's 22nd Estonian Territorial Corps. He is wearing a full-dress cavalry coat. Pattern 1936, red riding breeches and high cavalry boots authorized for wear in Estonian cavalry. The sabre is Estonian, Pattern 1925. The service cap is of Red Army combined-arms type. Pattern 1936. The insignia correspond to Soviet standards. North-Western Front, July 1941.

http://www.armchairgeneral.com/rkkaww2/uniform/uniform1.htm