Hi Mike
Strangely I dont have any German description of this raid...
However it seems that at 1 British DH 9 was reported shot down and eventually claimed both by Jasta 18 and Jasta 76b...ref NB
I dont knew which one, Kallmünzer or Monnington who finally received the confirmation for the victory..
So it seems that at least one more German unit was involved...
However the German officially reported a total loss of 19 a/c through enemy action during raids on their homeland in July 1918.
17 of these in air combat, 1 by AA and the last was reported missed..
The German claimed themselfes 81 e/a during these raids in July. 48 of these fell within German hold lines. Of the total were 59 e/a claimed in aerial combat.
I also think that some other German units could have been involved...
:

Gunnar