Yeah, I've had a good scan of this retouched photo from Colin Owers for some time. The E.V displays the Saxon coat-of-arms. However, I hope that nobody jumps to the conclusion that this was a Jasta 10 aicraft just because
Paul Aue of that Staffel was photographed with a similarly marked D.VII. In fact, Alex Imrie tells me that that photo of Aue actually shows him (and the aircraft) in a post-war Freikorps unit, not Jasta 10.
Even though the D.VII displays early type Balkenkreuz insignia, it makes sense.
I'm very sure this E.V was photographed in Allied hands after the war, and I don't know what its German unit was, or its pilot. Still, a neat insignia.
Greg