Thanks again Kees! Outstanding exploration!
I had not thought Bristol send aircrafts again to Halberstadt.
Just the conditions on the airfield were not the best at this time.
And when the flying school of the "Deutsche Bristol Werke" was contracted to train military pilots for money out of the "National Flugspende" they did need training aircrafts.
Probably also for this reason on 1. December 1912 the "MILITÄR-FLIEGERSCHULE Halberstadt GmbH" was separated from the aircraft factory.
And yes, Paschen has been in Bristol for 8 Weeks in March/April 1913, immediately after he got his pilot brevet on 17. Feb. 1913 (No.362)
It is told he visited the Bristol factory "for a propper look around".
And he schould have done the maiden flight with the first Halberstadt Taube in July that year.
So you found out the aircraft were Eberhard von Gienath and Wolfram Paschen are sitting in was a british built. That makes sense. I did not believe this type was built in Halberstadt. But the photo with the german flight teacher has been taken in Halberstadt.
Thanks for you research!
Cheer
Aquilius