Just found this early work by Künneke in a performance (https://youtu.be/ytVqxbTLtiA?si=YUbB5SXCUcn9ZI0k) on Youtube by the Cologne Radio Symphony Orchestra, conducted by Jan Stulen.
Original German title and movements:
Suite für Orchester op. 4
Gefangenenlager / Flandern / Fridericianischer Marsch / Beyram
The Künneke archival holdings at the Akademie der Künste in Berlin date this to 1918.