Paris as seen from the church of Saint Gervais. Jules Gervais-Courtellemont/National Geographic Creative/Corbis These colored photos by Jules Gervais-Courtellemont will take you back through time to see how Paris looked in 1923. The vivid images are produced using the autochrome technique in which the plates are covered in microscopic red, green and blue colored potato … Continue reading Paris in Vivid Color Images by Jules Gervais-Courtellemont, 1923