Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Visual and Verbal Communication (hierarchy name)
4. Information Forms (hierarchy name)
5. information forms (objects)
6. document genres
7. [documents by function]
8. [identifying markings and symbols]
9. marks (identifying markings)
10. [marks by process or technique]

Anotations

Scope note:

The marks made on copperplates by steel tools when engraving or etching. Tool work can sometimes be identified (such as stipple work), however, most tool work cannot be specifically identified when examining prints.