Photography undergoes extraordinary changes in the early part of the twentieth century.
A suspension of silver salts in gelatin is coated onto a support such as glass, flexible plastic or film, baryta paper, or resin-coated paper.
In order to understand this change in perception and use—why photography appealed to artists by the early 1900s, and how it was incorporated into artistic practices by the 1920s—we need to start by looking back.
In the later nineteenth century, photography spread in its popularity, and inventions like the Kodak #1 camera (1888) made it accessible to the upper-middle class consumer; the Kodak Brownie camera, which cost far less, reached the middle class by 1900.
In general, short lines tend to provide the most fascinating operations of any railroad.
As local, centrally based companies they are much more down-home in nature, often friendlier (than large Class Is), and are just more fun to watch than the big roads.