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. information artifacts
7. [information artifacts by function]
8. identifying artifacts
9. identification numbers and codes
10. identification numbers

Anotations

Scope note:

Identification numbers associated with objects or documents that are assigned by an individual collector, rather than a numerical system applied by a repository. These numbers may appear on the backs of paintings, and occasionally appear in stock books along with other descriptions of an object. These are similar to collector’s marks but without a stamp, and may be numeric or alphanumeric.