THE PHOTOCHROM GUIDE TO : Dresden, Germany, c. 1890-1900.
These Photochrome images of Dresden by Photocrome of Zurich, were made shortly after the company invented the process in the 1880s.
The Photocrome process was an old school process for colourizing black-and-white negatives via the direct photographic transfer of a negative onto lo-fi lithographic printing plates made of stobe. The process is a photographic variant of chromolithography (color lithography).
Creatively choosing colour & then using a mechanical process to apply that colour to a black & white photo rather than doing it by hand. Colouring-in a monotone world.