Matinee de Septembre (or September Morn) was painted by the French artist Paul Emile Chabas (1869-1937) over three summers, ending in 1912, and won a medal in a Paris art show that year but did not create any sensation.
The next year, when it was in a window of an art gallery in Manhattan, New York (USA), it caught the attention of Anthony Comstock (1844-1915), a self-appointed crusader against "vice" at the time whose campaign to have the "dirty picture" suppressed made it famous. The public relations pioneer Harry Reichenbach claimed to have performed a sniggle by bringing it to Comstock's attention as a contract job for the targeted gallery.
Lithograph copies of the artwork were popularly sold for over a decade.
The original painting is on display in the Metropolitan Museum of Art in New York City.