""Back to the past in a world that turns too fast...This piano is 118 years old...its photo distorted by the cylindrical box shows white keys that make you think of human teeth discovered by a dazzling smile...I thought of the pianist Nat King Cole when I retrieved the image of the Caffenol-based revelation bath...He sang on a famous smile, that of Mona Lisa, Leonardo da Vinci's "La Gioconda" who himself even experimented with the principle of the camera obscura...""