Interesting photos by an unknown Russian photographer depicting Moscow during the Soviet era ca. 1920 -60.
Judging from the high quality and motifs of some of the photos I think the photographer might have worked for at press agency, while others look more "vernacular".
Panzer: Pzkpfw IV, Ausf B
Damaged/ destroyed Panzer IV and II on the battlefield, most likely in Russia. Note the upturned Sdkfz 10 in the foreground with a Pak 36 it was towing lying on top of it. This destruction was probably the result of heavy artillery bombardment or maybe an aerial attack.