The dome of the Galeries Lafayette in Paris, built in 1912. © XJ Galeries Lafayette just celebrated the centenary of their famous Parisian dome. What relationship with the design? If this immense and wonderful colorful Medusa was designed by architect Ferdinand Chanut, its stained glass was designed by Jacques Gruber in a late Art Nouveau (in 1912, Art Nouveau was no longer very new, its peak is located rather towards 1900). The Jacques Gruber from Nancy (1870-1936) was a painter, graphic designer, illustrator, glass, ceramist, cabinetmaker designer embroidery and lace ... According to current terminology, it