Gentlemen!
All your knowledge and educated guessing needed here! Albatros C.III C.12069 built by OAW late 1917, photographed in Finland in 1919. The Balkenkreuz of fuselage sides and upper wing have been modified to represent some kind of Finnish national markings (normally blue swastika on white roundel). Otherwise the plane is presumably in its original German finish. The lower wing underside markings may even be crosse patée, with no white lining?
The fuselage seems to be painted all over with same dark colour? What might the colour be?
The wings: Do you see light tape on the leading edges and ribs, especially on the lower starboard side wing? Could the wings be covered with lozenge fabric and light blue rib tapes?
Mikko