Sequentie van vormen van de mond bij het uitspreken van 'Je vous aime' before 1891

This photo, *Sequentie van vormen van de mond bij het uitspreken van 'Je vous aime'*, by M.G. Demeny from before 1891, shows a photographic study of a human face as it speaks the French phrase "I love you." It demonstrates the evolving shapes of the mouth during articulation of the phrase, a pioneering example of early photographic studies of human motion. These images are arranged in a grid, offering a visual representation of the complex movements involved in speech. The image is a valuable historical document for understanding the development of early motion studies and the application of photography to scientific research.