'Finland's liberation struggle against the Red Guards. German naval squadron on its way to Hanko.' Following Finland's secession from Russia, a civil war ensued and Germany sent forces to support White Finland against the Finnish Socialist Workers' Republic, including, apparently, this reconnaissance plane. The comments provided by the photo source also mention German mail flights on the Eastern Front in Ukraine, apparently in error. Photo from: Marinmuseum (Sweden)
This photo was added on 17 December 2021, and has since been viewed 384 times.