The Bloch MB.210 was a French aviation designed and produced before World War 2 for aircraft in both civilian and military guises. Final civilian forms came in 1939 prior to the Fall of France in the summer of 1940. Military versions persisted into 1947.
The Dewoitine D. 520 was a single seat piston-engine fighter designed and built for the French Air Force. Dewoitine produced a fighter of sleek design and acceptable capability especially when compared to that of the German Luftwaffe to which D.520 squared off valiantly yet unsuccessfully in the Fall of France in 1940.