Artillery observers watching for enemy front defence line
Karelian Front. 1942 

Artillery observers 

     This aircraft entered service in 1933, and although obsolete by the time the war started, it served as a reconnaissance and pilot-rescue aircraft. It was in service right up to war's end, patrolling the skies over the Baltic, Black Sea and along the northern Artic coast.

Beriev MDR-2 flying boat

Artillery piece under command of sergeant K.F. Kapranov firing at Finnish positions. Karelian Front. 1942 