In article , DAN says...

Hi Miloch

This one is actually a D-5 (D.V) in service with the Ottoman Empire, ie Turkey.

Ya...I know...it's in the text as part of the many similar WW1 planes developed
by Haberstadt. Didn't know if I should put it in or leave it for a standalone
post...decided to leave it in.

https://linen.miraheze.org/wiki/Halberstadt_D.V

"The Halberstadt D.II (with a 120hp Mercedes D.II) and D.III (with the 120 Argus
AS II) premiered in June 1916 at a time when the Fokker Eindeckers were really
showing their age and lack of performance. Their good flying characteristics
made them more popular than their contemporaries of the Fokker D.I-IV, and it
was not until the rise of the twin-gun Albatros fighters that the the
Halberstadts were withdrawn from the Western Front in mid 1917.

"The Halberstadt D.V was a development of the D.III with the forward vision
improved through an open cabane strut structure, balanced ailerons, and a
circular top-wing cut-out. The single machine gun was placed on the port
(intake) side of the engine and a simple side exhaust was fitted. Fifty-seven
were built, of which thirty-one were sent to Turkey, and several of the 26
remaining were used in Palestine, where they continued to serve well into 1918.
Planes serving in the Middle East were sometimes fitted with supplementary
radiators and/or a second machine gun.




*

During WW1 it sided with the Central powers.
The markings were red squares outlined in white.

Quite a rare bird.