1890s photo From city walls, York, England. photochrom (also called the A&auml;c process) prints are colorized images produced from black and white photographic negatives via the direct photographic transfer of a negative on to lithographic printing plates. Vintage 8x10 Photograph - Ready to Frame 1890s photo From city walls, York, England. photochrom (also called the Ac process) prints are colorized images produced from black and wh Photograph size: 8 x 10 Vintage Historic Photograph Archival Quality Reproduction Ready to Frame