Hierarchy classification:

1. top of the aat hierarchies
2. Materials Facet
3. Materials (hierarchy name)
4. materials (substances)
5. [materials by form]
6. [materials by physical form]
7. [fiber and fiber by product]
8. [fiber by product]
9. paper (fiber product)
10. [paper by function]
11. photographic paper

Anotations

Scope note:

Direct positive paper produces black-and-white positive prints directly without relying on the film negative in the print's production. It is coated with a silver gelatin emulsion for reversible emulsion and has been used primarily for pinhole photography.