Although wearing Finnish contemporary markings - which had nothing to do with the Nazis - it was actually a Swedish air force unit which fought the Russians from Kemi in northern Finland during the final two months of the 1939-40 Winter War. It had twelve Gladiator fighters and four Hart light bombers with open cockpits. Swedish Harts were all powered by Mercury radial engines. Note the skis carried for use by the crew in an emergency. This airframe did not actualy serve in Finland.
This photo was added on 8 August 2017, and has since been viewed 625 times.