Photographic print made by the carbon process, which uses carbon pigment and geletin to transfer images to a paper support. A carbon print shows a very slight relief and rarely exhibit signs of aging [..]

The result of a photographic process patented by Joseph Wilson Swann in 1864 and popular until about 1910, in which a thin sheet of paper coated with a layer of light-sensitive gelatin containing a pe [..]

A number of carbon processes were described before Sir Joseph Swan patented a process in 1864. Swan's was introduced the following year and found commercial success by providing the photographer [..]

A pigment print is made by coating the paper with a layer of bichromated gelatin mixed with a carbon pigment. The paper is placed in direct contact with the negative and then exposed to light. The gelatin hardens according to how much light it receives. After exposure the paper is then put in contact with a fresh sheet of gelatin coated paper and t [..]