Celebration 200th victory of Jasta 11

Testimonial of Lt von der Osten: During the evening of this memorable 17 August 1917, von Richthofen suddenly ordered a bottle of champagne and proclaimed, that my first victory was also the 200th victory of Jasta 11. I should add that at Jasta 11 we very rarely drank, as we always had to keep ourselves ready to leave.