Copyright owner: Heikki Virkkunen
License: CC-BY-NC-4.0
Caption: 7517-8535-4122-2968 (fi)
Copyright owner: J. Tyllinen
License: CC-BY-NC-4.0
Copyright owner: J. Tyllinen
License: CC-BY-NC-4.0
Copyright owner: J. Tyllinen
License: CC-BY-NC-4.0
Copyright owner: J. Tyllinen
License: CC-BY-NC-4.0
Copyright owner: Pentti Ketola
License: CC-BY-NC-4.0