Hierarchy classification:

1. top of the aat hierarchies
2. Activities Facet
3. Processes and Techniques (hierarchy name)
4. [processes and techniques by specific type]
5. [image-making processes and techniques]
6. [photography and photographic processes and techniques]
7. photographic processes

Anotations

Scope note:

Refers loosely to various photographic processes employing silver chloride printing-out paper with either gelatin or collodion as the binder; popular from the late 1880s to the early 20th century. At one time a trade name, but the term fell into generic use.