Private Flight Issue; 1938 5fr Green, portion of a postal cancel "1er Vol postal" for the first postal test flight on July 24, pulled perf at bottom, still fine and scarce; produced by the Flying Club at the La Baule airport (on French Atlantic coast serving the three towns shown on the stamp) in part for preparations for the inauguration of regular flights from La Baule to Paris and then London which began in August of 1938 Founded in 1929, the club took the name "Jean Mermoz" in 1937 in honor of the French aviator whose plane and crew disappeared over the Atlantic in Dec 1936.