Pathécolor

Pathécolor, later renamed Pathéchrome, was an early mechanical stencil-based film tinting process for movies developed by Pathé in the early 20th century. One of the last feature films to use the process was the British revue film Elstree Calling (1930). The Pathécolor stencil process should not be confused with the later Pathécolor, Pathé C...
Found on http://en.wikipedia.org/wiki/Pathécolor

Pathécolor

(from the article `motion picture, history of the`) ...films were very short. In the mid-1900s, as films began to approach one reel in length and more prints of each film were sold, mechanized ...
Found on http://www.britannica.com/eb/a-z/p/27
No exact match found