German Radio Operator in the Russian Winter

A pair of German artillery radio operators send coordinates on a portable transmitter in the Soviet Union, winter of 1942. The second man has a captured Russian Ushanka fur hat. The image was originally published as 'Das Heer im Grossdeutschen Freiheitskampf' (translated as 'The Army in the Greater German Freedom Struggle'), a collection of 50 plus images taken by the German Army's combat photography unit (Propagandakompanie) during the German invasion of the Soviet Union. The picture itself was taken by Kriegsberichter Trautvetter.

Source :
https://www.ebay.com/itm/264071426140
https://www.reddit.com/r/wwiipics/comments/72cdff/two_german_radiomen_operating_their_equipment_in/

German Field Telephone in World War II

The field telephone is the basic and most frequently used piece of communication equipment on the battlefield. Used from the front line to the highest headquarters, it gave military commanders and unprecedented real time control of operations. Even though the design principles of field telephone equipment were well understood for many years, much of the equipment from before the1930’s was expensively produced on a small scale. The rapid developments in public phone network technology with which the field equipment was required to interface had led to a great complexity of equipment. The new field telephone unit, telephone switchboard and auxiliary equipment were introduced into service in 1933 and subsequent years would become the mainstay of German field communication. They would remain in production with only minor changes until the end of the war; of the FF 33 field telephone originally developed by Siemens in 1933, over 1.6 million examples were made by 24 different manufacturers.

Source :
"German Field Line Communication equipment of WW2" by Funksammler Publications

A U.S. Army Forward Artillery Observer with a Field Phone and Radio

A U.S. Army forward artillery observer with a field phone and radio. He also served as telephone operator as the remote control point relays the observer's report on enemy activity to the Artillery Battalion Command Post. Infantry units would have observer from artillery units attached to direct artillery fire. Artillery support was a crucial element in the American advance in all theatres of war in World War II. On the left of the picture are several boxes of K rations. These rations were the most frequently consumed ration on the frontline. Each box contained a complete meal. Boxes were marked separately for breakfast, lunch and dinner.

Source :
Book "Patton's Third Army" by Christopher J. Anderson
http://historylink101.com/world_war_II_resources.html

American Soldier in Phone during Exercise

A soldier of the U.S. 5th Armored Division takes a message during training exercise early in the war. The soldier is wearing the one piece HBT uniform over a white T-shirt. On his left side he has attached an M1 gas mask. He has sewn his divisional insignia on to the left hand side of his chest. The 5th Armored Division would arrive in France in July 1944. After a short time with the Third Army, the division would be transferred to the First Army.

Source :
Book "Patton's Third Army" by Christopher J. Anderson