A photochrom print of the inside of a Coptic church, Cairo, Egypt, in 1906. This image was made by French industrialist Paul Fleury. Photochrom (also called the A瓣c process) prints are colorized images produced from black-and-white photographic negatives via the direct photographic transfer of a negative onto lithographic printing plates. The process is a photographic variant of chromolithography, a broader term that refers to color lithography in general.