April Fools’ Day in France is the day of “Poisson d’Avril” – April Fish. Jokes revolve around the sea critter – especially that of attaching a paper fish to the back of an unsuspecting individual who goes about his day never suspecting he has a paper trout dangling on the back of his jacket.
What does that have to do with aircraft? Not a thing. However, with aeroplanes being the newest thing back in 1909 (when this card was posted) it is not surprising the old tradition of “Poisson d’Avril” was given a new twist. Note: when visiting France on April 1st, always check your back.