D.2033/16 - Jasta 17 - VzfW. Julius Buckler - April 1917
Status: Confirmed by photos
Additional drag cables were installed between the upper wing and nose. The serial number position on rudder is unusually low.
Aviation Awards of Imperial Germany, part 7, Schiffer publishing
Albatros Aces of WWI, part II, Osprey Publishing
Malaula! - The battle Cry of Jasta 17, Grub Street