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. prints (visual works)
8. [prints by function]
9. proofs (prints by function)

Anotations

Scope note:

Set of proofs showing each color from a color printing process on an individual impression. For a set of proofs showing the sequential and cumulative steps in a color printing process as each color is added, use "progressive proofs."