Yesterday after Samuraj's question I've searched through all the references I could find, and spent time until vee-hours to find the most probable answer/solution...
So, off to Fokker D.VII differences we go...
To study this, I think Windsock datafile specials Fokker D.VII Anthology are sine qua non - there you could find everything, or almost everything
one of the issues missing is just the photo of Degelows plane taken from appropriate angle and no people surrounding it
Missing that, I stuck to what Dan-San and Stephen Lawson said, as well as data available. As one of them stated, all-in-all there were 26 different versions of Fokker D.VII from all 3 producers (MAG not accounted in).
The particular machine was probably from 525/18 - 874/18 batch, early Albatros production. Therefore the early style of cowling louvres should be applied.
In general, Albatros started their licence production of Fokkers by simply copying original aircraft received from mother factory - no plans delivered whatsoever... Therefore I tend to think that also louvres were copied, and modified only in later stage of production...
Anthology Vol.3 deals with Albatros-produced machines, and there some interesting pictures might be seen.
On page 59 is also shown variety of cowling details of Alb. machines, with later modifications and all...
Now, to two published profiles:
first one is Pearsons, and is based on Cross & Cockade 22/1:
http://www.cbrnp.com/profiles/quarter1/fokker_d7/fokker-dvii-degelow.jpg - this version could also be seen in Osprey book Aircraft of the Aces n°63 (page 50), rendered by Dempsey, and at the back cover of Grub Street edition of Black Fokker Leader.
Another version, which shows louvres as Roden provided them, is seen in mentioned Windsock Fokker Anthology Vol.2, on the page 44 - this one is drawn by Ray Rimell.
Interesting fact is that on the same page is another profile of Jasta 40 machine, Auers one, with louvres as Eduard gave it.
Huh... this profile correspondss to another part of the story - somewhere after mid-August Jasta 40 changed markings so that horisontal tail surfaces weren't clearly white anymore, but with narrow dark blue stripes. Since the picture of Degelow in front of his machine is taken 08.11.1918, after he received Hoenzolern Orden, his markings should be the same
Auers machine is pretty well documented, since it was captured by the British on 28.10.
That way maybe at the same time Degelow also had another, newer machine. He was Jastafuhrer, and naturally should have had it... BTW, plane on mentioned picture has OAW-built wings... aaagh!!!
To conclude: be as it is, I'm going to build it as an early sample, with all-white tail and no modification to louvres, to supposedly picture it as it was before mid-August...
Suggestion for further reading (apart from mentioned books):
http://theaerodrome.com/forum/models/3909-degelow-d-vii.htmlhttp://theaerodrome.com/forum/models/4122-carl-degelows-fokker-d-vii-white-stag.htmlHere are some nice advices to details in modelling D.VII, although for 1/48 Roden model:
http://www.theaerodrome.com/forum/models/3541-rodens-1-48-fokker-d-vii-build.html.
