Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Visual and Verbal Communication (hierarchy name)
4. Visual Works (hierarchy name)
5. visual works (works)
6. [visual works by material or technique]
7. photographs
8. [photographs by technique]
9. [photographs by processing or presentation technique]

Anotations

Scope note:

Photographs produced without a camera, usually by placing an object directly on sensitized paper and exposing it to light. Includes Talbot's first photographs, which he called photogenic drawings. In the early 20th century the term was sometimes used to mean all photographs.