12/31/2007. Remarks by Johan Visschedijk: "The aircraft was registered to DWL (Doswiadczalne Warszaty Lotnicze) on February 3, 1937. The photowas taken during "The Circuit of the Oases", the pilot, Jerzy Drzewiecki, was also one of the three designers of the RWD 13."

For more information about the Circuit and its 1937 participants, read the remarks on page 6704.